BS 1806 O-ring standard specifications (inch)

I learned much of this information from the Argo Group, Gapi S.p.A., and Precision Associates websites.

About the BS 1806 standard for O-rings

The BS 1806 standard for O-rings is produced by the British Standards Institution. The BS 1806 specification describes 464 O-rings. Each size is designated with a dash number and can be described using two values: the inside diameter and diameter of the cross-section. The BS 1806 standard includes all of the 5 main cross section groups in AS 568 A standard plus extra sizes in the ¹⁄₄ inch nominal cross-section group.

In contrast to the AS 568 A inch system, the nominal and physical dimensions of metric O-rings match precisely. That is, a 1 mm O-ring will have a cross-section of 1 mm. The space that is being filled must be about 10% to 15% smaller than the cross-section of the O-ring in order for O-ring to seal properly.

Sizes within the BS 1806 standard for O-rings

This table includes O-ring sizes there were included in earlier versions of the BS 1806 standard, but later eliminated.

Size reference code (dash number)	Decimal size in inches		Decimal size in millimeters
Size reference code (dash number)	Cross-section	ID	Cross-section	ID
-001	0.04 inch	0.029 inch	1.02 mm	0.74 mm
-606	0.04 inch	0.07 inch	1.02 mm	1.78 mm
-607	0.04 inch	0.1 inch	1.02 mm	2.54 mm
-002	0.05 inch	0.042 inch	1.27 mm	1.07 mm
-003	0.06 inch	0.056 inch	1.52 mm	1.42 mm
-902	0.064 inch	0.239 inch	1.63 mm	6.07 mm
-903	0.064 inch	0.301 inch	1.63 mm	7.65 mm
-004	0.07 inch	0.07 inch	1.78 mm	1.78 mm
-005	0.07 inch	0.101 inch	1.78 mm	2.57 mm
-006	0.07 inch	0.114 inch	1.78 mm	2.9 mm
-801	0.07 inch	0.125 inch	1.78 mm	3.18 mm
-007	0.07 inch	0.145 inch	1.78 mm	3.68 mm
-008	0.07 inch	0.176 inch	1.78 mm	4.47 mm
-802	0.07 inch	0.187 inch	1.78 mm	4.75 mm
-009	0.07 inch	0.208 inch	1.78 mm	5.28 mm
-010	0.07 inch	0.239 inch	1.78 mm	6.07 mm
-803	0.07 inch	0.25 inch	1.78 mm	6.35 mm
-610	0.07 inch	0.266 inch	1.78 mm	6.76 mm
-011	0.07 inch	0.301 inch	1.78 mm	7.65 mm
-804	0.07 inch	0.313 inch	1.78 mm	7.94 mm
-611	0.07 inch	0.344 inch	1.78 mm	8.74 mm
-012	0.07 inch	0.364 inch	1.78 mm	9.25 mm
-013	0.07 inch	0.426 inch	1.78 mm	10.82 mm
-806	0.07 inch	0.437 inch	1.78 mm	11.1 mm
-014	0.07 inch	0.489 inch	1.78 mm	12.42 mm
-015	0.07 inch	0.551 inch	1.78 mm	14 mm
-016	0.07 inch	0.614 inch	1.78 mm	15.6 mm
-017	0.07 inch	0.676 inch	1.78 mm	17.17 mm
-018	0.07 inch	0.739 inch	1.78 mm	18.77 mm
-019	0.07 inch	0.801 inch	1.78 mm	20.35 mm
-020	0.07 inch	0.864 inch	1.78 mm	21.95 mm
-021	0.07 inch	0.926 inch	1.78 mm	23.52 mm
-022	0.07 inch	0.989 inch	1.78 mm	25.12 mm
-023	0.07 inch	1.051 inch	1.78 mm	26.7 mm
-024	0.07 inch	1.114 inch	1.78 mm	28.3 mm
-025	0.07 inch	1.176 inch	1.78 mm	29.87 mm
-026	0.07 inch	1.239 inch	1.78 mm	31.47 mm
-027	0.07 inch	1.301 inch	1.78 mm	33.05 mm
-028	0.07 inch	1.364 inch	1.78 mm	34.65 mm
-517	0.07 inch	1.428 inch	1.78 mm	36.27 mm
-029	0.07 inch	1.489 inch	1.78 mm	37.82 mm
-519	0.07 inch	1.553 inch	1.78 mm	39.45 mm
-030	0.07 inch	1.614 inch	1.78 mm	41 mm
-031	0.07 inch	1.739 inch	1.78 mm	44.17 mm
-032	0.07 inch	1.864 inch	1.78 mm	47.35 mm
-033	0.07 inch	1.989 inch	1.78 mm	50.52 mm
-034	0.07 inch	2.114 inch	1.78 mm	53.7 mm
-035	0.07 inch	2.239 inch	1.78 mm	56.87 mm
-036	0.07 inch	2.364 inch	1.78 mm	60.05 mm
-037	0.07 inch	2.489 inch	1.78 mm	63.22 mm
-038	0.07 inch	2.614 inch	1.78 mm	66.4 mm
-039	0.07 inch	2.739 inch	1.78 mm	69.57 mm
-040	0.07 inch	2.864 inch	1.78 mm	72.75 mm
-041	0.07 inch	2.989 inch	1.78 mm	75.92 mm
-532	0.07 inch	3.11 inch	1.78 mm	78.99 mm
-042	0.07 inch	3.239 inch	1.78 mm	82.27 mm
-534	0.07 inch	3.36 inch	1.78 mm	85.34 mm
-043	0.07 inch	3.489 inch	1.78 mm	88.62 mm
-536	0.07 inch	3.61 inch	1.78 mm	91.69 mm
-044	0.07 inch	3.739 inch	1.78 mm	94.97 mm
-538	0.07 inch	3.86 inch	1.78 mm	98.04 mm
-045	0.07 inch	3.989 inch	1.78 mm	101.32 mm
-540	0.07 inch	4.11 inch	1.78 mm	104.39 mm
-046	0.07 inch	4.239 inch	1.78 mm	107.67 mm
-542	0.07 inch	4.36 inch	1.78 mm	110.74 mm
-047	0.07 inch	4.489 inch	1.78 mm	114.02 mm
-544	0.07 inch	4.61 inch	1.78 mm	117.09 mm
-048	0.07 inch	4.739 inch	1.78 mm	120.37 mm
-546	0.07 inch	4.86 inch	1.78 mm	123.44 mm
-049	0.07 inch	4.989 inch	1.78 mm	126.72 mm
-548	0.07 inch	5.095 inch	1.78 mm	129.41 mm
-050	0.07 inch	5.239 inch	1.78 mm	133.07 mm
-550	0.07 inch	5.345 inch	1.78 mm	135.76 mm
-551	0.07 inch	5.47 inch	1.78 mm	138.94 mm
-552	0.07 inch	5.595 inch	1.78 mm	142.11 mm
-553	0.07 inch	5.72 inch	1.78 mm	145.29 mm
-554	0.07 inch	5.845 inch	1.78 mm	148.46 mm
-555	0.07 inch	5.97 inch	1.78 mm	151.64 mm
-556	0.07 inch	6.095 inch	1.78 mm	154.81 mm
-557	0.07 inch	6.22 inch	1.78 mm	157.99 mm
-558	0.07 inch	6.345 inch	1.78 mm	161.16 mm
-559	0.07 inch	6.47 inch	1.78 mm	164.34 mm
-560	0.07 inch	6.695 inch	1.78 mm	170.05 mm
-561	0.07 inch	6.72 inch	1.78 mm	170.69 mm
-562	0.07 inch	6.845 inch	1.78 mm	173.86 mm
-102	0.103 inch	0.049 inch	2.62 mm	1.24 mm
-103	0.103 inch	0.081 inch	2.62 mm	2.06 mm
-104	0.103 inch	0.112 inch	2.62 mm	2.84 mm
-105	0.103 inch	0.143 inch	2.62 mm	3.63 mm
-106	0.103 inch	0.175 inch	2.62 mm	4.45 mm
-107	0.103 inch	0.206 inch	2.62 mm	5.23 mm
-108	0.103 inch	0.237 inch	2.62 mm	6.02 mm
-109	0.103 inch	0.299 inch	2.62 mm	7.59 mm
-110	0.103 inch	0.362 inch	2.62 mm	9.19 mm
-613	0.103 inch	0.391 inch	2.62 mm	9.93 mm
-111	0.103 inch	0.424 inch	2.62 mm	10.77 mm
-614	0.103 inch	0.469 inch	2.62 mm	11.91 mm
-112	0.103 inch	0.487 inch	2.62 mm	12.37 mm
-807	0.103 inch	0.5 inch	2.62 mm	12.7 mm
-615	0.103 inch	0.516 inch	2.62 mm	13.11 mm
-113	0.103 inch	0.549 inch	2.62 mm	13.94 mm
-616	0.103 inch	0.594 inch	2.62 mm	15.09 mm
-114	0.103 inch	0.612 inch	2.62 mm	15.54 mm
-809	0.103 inch	0.625 inch	2.62 mm	15.88 mm
-115	0.103 inch	0.674 inch	2.62 mm	17.12 mm
-810	0.103 inch	0.687 inch	2.62 mm	17.45 mm
-617	0.103 inch	0.703 inch	2.62 mm	17.86 mm
-116	0.103 inch	0.737 inch	2.62 mm	18.72 mm
-117	0.103 inch	0.799 inch	2.62 mm	20.29 mm
-812	0.103 inch	0.812 inch	2.62 mm	20.62 mm
-118	0.103 inch	0.862 inch	2.62 mm	21.89 mm
-813	0.103 inch	0.875 inch	2.62 mm	22.23 mm
-119	0.103 inch	0.924 inch	2.62 mm	23.47 mm
-814	0.103 inch	0.937 inch	2.62 mm	23.8 mm
-120	0.103 inch	0.987 inch	2.62 mm	25.07 mm
-121	0.103 inch	1.049 inch	2.62 mm	26.64 mm
-122	0.103 inch	1.112 inch	2.62 mm	28.24 mm
-123	0.103 inch	1.174 inch	2.62 mm	29.82 mm
-124	0.103 inch	1.237 inch	2.62 mm	31.42 mm
-125	0.103 inch	1.299 inch	2.62 mm	32.99 mm
-126	0.103 inch	1.362 inch	2.62 mm	34.59 mm
-127	0.103 inch	1.424 inch	2.62 mm	36.17 mm
-128	0.103 inch	1.487 inch	2.62 mm	37.77 mm
-129	0.103 inch	1.549 inch	2.62 mm	39.34 mm
-130	0.103 inch	1.612 inch	2.62 mm	40.94 mm
-131	0.103 inch	1.674 inch	2.62 mm	42.52 mm
-132	0.103 inch	1.737 inch	2.62 mm	44.12 mm
-133	0.103 inch	1.799 inch	2.62 mm	45.69 mm
-134	0.103 inch	1.862 inch	2.62 mm	47.29 mm
-135	0.103 inch	1.925 inch	2.62 mm	48.9 mm
-136	0.103 inch	1.987 inch	2.62 mm	50.47 mm
-137	0.103 inch	2.05 inch	2.62 mm	52.07 mm
-138	0.103 inch	2.112 inch	2.62 mm	53.64 mm
-139	0.103 inch	2.175 inch	2.62 mm	55.25 mm
-140	0.103 inch	2.237 inch	2.62 mm	56.82 mm
-141	0.103 inch	2.3 inch	2.62 mm	58.42 mm
-142	0.103 inch	2.362 inch	2.62 mm	59.99 mm
-143	0.103 inch	2.425 inch	2.62 mm	61.6 mm
-144	0.103 inch	2.487 inch	2.62 mm	63.17 mm
-145	0.103 inch	2.55 inch	2.62 mm	64.77 mm
-146	0.103 inch	2.612 inch	2.62 mm	66.34 mm
-147	0.103 inch	2.675 inch	2.62 mm	67.95 mm
-148	0.103 inch	2.737 inch	2.62 mm	69.52 mm
-149	0.103 inch	2.8 inch	2.62 mm	71.12 mm
-150	0.103 inch	2.862 inch	2.62 mm	72.69 mm
-640	0.103 inch	2.924 inch	2.62 mm	74.27 mm
-151	0.103 inch	2.987 inch	2.62 mm	75.87 mm
-641	0.103 inch	3.049 inch	2.62 mm	77.44 mm
-642	0.103 inch	3.174 inch	2.62 mm	80.62 mm
-152	0.103 inch	3.237 inch	2.62 mm	82.22 mm
-643	0.103 inch	3.299 inch	2.62 mm	83.79 mm
-153	0.103 inch	3.487 inch	2.62 mm	88.57 mm
-154	0.103 inch	3.737 inch	2.62 mm	94.92 mm
-155	0.103 inch	3.987 inch	2.62 mm	101.27 mm
-156	0.103 inch	4.237 inch	2.62 mm	107.62 mm
-157	0.103 inch	4.487 inch	2.62 mm	113.97 mm
-158	0.103 inch	4.737 inch	2.62 mm	120.32 mm
-159	0.103 inch	4.987 inch	2.62 mm	126.67 mm
-160	0.103 inch	5.237 inch	2.62 mm	133.02 mm
-161	0.103 inch	5.487 inch	2.62 mm	139.37 mm
-162	0.103 inch	5.737 inch	2.62 mm	145.72 mm
-163	0.103 inch	5.987 inch	2.62 mm	152.07 mm
-164	0.103 inch	6.237 inch	2.62 mm	158.42 mm
-165	0.103 inch	6.487 inch	2.62 mm	164.77 mm
-166	0.103 inch	6.737 inch	2.62 mm	171.12 mm
-167	0.103 inch	6.987 inch	2.62 mm	177.47 mm
-168	0.103 inch	7.237 inch	2.62 mm	183.82 mm
-169	0.103 inch	7.487 inch	2.62 mm	190.17 mm
-170	0.103 inch	7.737 inch	2.62 mm	196.52 mm
-171	0.103 inch	7.987 inch	2.62 mm	202.87 mm
-172	0.103 inch	8.237 inch	2.62 mm	209.22 mm
-173	0.103 inch	8.487 inch	2.62 mm	215.57 mm
-174	0.103 inch	8.737 inch	2.62 mm	221.92 mm
-175	0.103 inch	8.987 inch	2.62 mm	228.27 mm
-176	0.103 inch	9.237 inch	2.62 mm	234.62 mm
-177	0.103 inch	9.487 inch	2.62 mm	240.97 mm
-178	0.103 inch	9.737 inch	2.62 mm	247.32 mm
-201	0.139 inch	0.171 inch	3.53 mm	4.34 mm
-202	0.139 inch	0.234 inch	3.53 mm	5.94 mm
-203	0.139 inch	0.296 inch	3.53 mm	7.52 mm
-204	0.139 inch	0.359 inch	3.53 mm	9.12 mm
-205	0.139 inch	0.421 inch	3.53 mm	10.69 mm
-206	0.139 inch	0.484 inch	3.53 mm	12.29 mm
-207	0.139 inch	0.549 inch	3.53 mm	13.94 mm
-208	0.139 inch	0.609 inch	3.53 mm	15.47 mm
-209	0.139 inch	0.672 inch	3.53 mm	17.07 mm
-210	0.139 inch	0.734 inch	3.53 mm	18.64 mm
-211	0.139 inch	0.796 inch	3.53 mm	20.22 mm
-212	0.139 inch	0.859 inch	3.53 mm	21.82 mm
-213	0.139 inch	0.921 inch	3.53 mm	23.39 mm
-214	0.139 inch	0.984 inch	3.53 mm	24.99 mm
-618	0.139 inch	1.016 inch	3.53 mm	25.81 mm
-215	0.139 inch	1.046 inch	3.53 mm	26.57 mm
-216	0.139 inch	1.109 inch	3.53 mm	28.17 mm
-217	0.139 inch	1.171 inch	3.53 mm	29.74 mm
-218	0.139 inch	1.234 inch	3.53 mm	31.34 mm
-219	0.139 inch	1.296 inch	3.53 mm	32.92 mm
-220	0.139 inch	1.359 inch	3.53 mm	34.52 mm
-221	0.139 inch	1.421 inch	3.53 mm	36.09 mm
-222	0.139 inch	1.484 inch	3.53 mm	37.69 mm
-824	0.139 inch	1.563 inch	3.53 mm	39.7 mm
-223	0.139 inch	1.609 inch	3.53 mm	40.87 mm
-825	0.139 inch	1.625 inch	3.53 mm	41.28 mm
-826	0.139 inch	1.687 inch	3.53 mm	42.85 mm
-224	0.139 inch	1.734 inch	3.53 mm	44.04 mm
-827	0.139 inch	1.75 inch	3.53 mm	44.45 mm
-828	0.139 inch	1.813 inch	3.53 mm	46.04 mm
-225	0.139 inch	1.859 inch	3.53 mm	47.22 mm
-829	0.139 inch	1.875 inch	3.53 mm	47.63 mm
-830	0.139 inch	1.937 inch	3.53 mm	49.2 mm
-226	0.139 inch	1.984 inch	3.53 mm	50.39 mm
-831	0.139 inch	2 inch	3.53 mm	50.8 mm
-832	0.139 inch	2.063 inch	3.53 mm	52.39 mm
-227	0.139 inch	2.109 inch	3.53 mm	53.57 mm
-833	0.139 inch	2.125 inch	3.53 mm	53.98 mm
-834	0.139 inch	2.187 inch	3.53 mm	55.55 mm
-228	0.139 inch	2.234 inch	3.53 mm	56.74 mm
-835	0.139 inch	2.25 inch	3.53 mm	57.15 mm
-836	0.139 inch	2.313 inch	3.53 mm	58.74 mm
-229	0.139 inch	2.359 inch	3.53 mm	59.92 mm
-837	0.139 inch	2.375 inch	3.53 mm	60.33 mm
-838	0.139 inch	2.437 inch	3.53 mm	61.9 mm
-230	0.139 inch	2.484 inch	3.53 mm	63.09 mm
-839	0.139 inch	2.5 inch	3.53 mm	63.5 mm
-840	0.139 inch	2.563 inch	3.53 mm	65.1 mm
-231	0.139 inch	2.609 inch	3.53 mm	66.27 mm
-841	0.139 inch	2.625 inch	3.53 mm	66.68 mm
-842	0.139 inch	2.687 inch	3.53 mm	68.25 mm
-232	0.139 inch	2.734 inch	3.53 mm	69.44 mm
-843	0.139 inch	2.75 inch	3.53 mm	69.85 mm
-844	0.139 inch	2.813 inch	3.53 mm	71.44 mm
-233	0.139 inch	2.859 inch	3.53 mm	72.62 mm
-845	0.139 inch	2.875 inch	3.53 mm	73.03 mm
-846	0.139 inch	2.937 inch	3.53 mm	74.6 mm
-234	0.139 inch	2.984 inch	3.53 mm	75.79 mm
-235	0.139 inch	3.109 inch	3.53 mm	78.97 mm
-236	0.139 inch	3.234 inch	3.53 mm	82.14 mm
-237	0.139 inch	3.359 inch	3.53 mm	85.32 mm
-238	0.139 inch	3.484 inch	3.53 mm	88.49 mm
-239	0.139 inch	3.609 inch	3.53 mm	91.67 mm
-240	0.139 inch	3.734 inch	3.53 mm	94.84 mm
-241	0.139 inch	3.859 inch	3.53 mm	98.02 mm
-242	0.139 inch	3.984 inch	3.53 mm	101.19 mm
-243	0.139 inch	4.109 inch	3.53 mm	104.37 mm
-244	0.139 inch	4.234 inch	3.53 mm	107.54 mm
-245	0.139 inch	4.359 inch	3.53 mm	110.72 mm
-246	0.139 inch	4.484 inch	3.53 mm	113.89 mm
-247	0.139 inch	4.609 inch	3.53 mm	117.07 mm
-248	0.139 inch	4.734 inch	3.53 mm	120.24 mm
-249	0.139 inch	4.859 inch	3.53 mm	123.42 mm
-250	0.139 inch	4.984 inch	3.53 mm	126.59 mm
-251	0.139 inch	5.109 inch	3.53 mm	129.77 mm
-252	0.139 inch	5.234 inch	3.53 mm	132.94 mm
-253	0.139 inch	5.359 inch	3.53 mm	136.12 mm
-254	0.139 inch	5.484 inch	3.53 mm	139.29 mm
-255	0.139 inch	5.609 inch	3.53 mm	142.47 mm
-256	0.139 inch	5.734 inch	3.53 mm	145.64 mm
-257	0.139 inch	5.859 inch	3.53 mm	148.82 mm
-258	0.139 inch	5.984 inch	3.53 mm	151.99 mm
-259	0.139 inch	6.234 inch	3.53 mm	158.34 mm
-260	0.139 inch	6.484 inch	3.53 mm	164.69 mm
-261	0.139 inch	6.734 inch	3.53 mm	171.04 mm
-262	0.139 inch	6.984 inch	3.53 mm	177.39 mm
-263	0.139 inch	7.234 inch	3.53 mm	183.74 mm
-264	0.139 inch	7.484 inch	3.53 mm	190.09 mm
-265	0.139 inch	7.734 inch	3.53 mm	196.44 mm
-266	0.139 inch	7.984 inch	3.53 mm	202.79 mm
-267	0.139 inch	8.234 inch	3.53 mm	209.14 mm
-268	0.139 inch	8.484 inch	3.53 mm	215.49 mm
-269	0.139 inch	8.734 inch	3.53 mm	221.84 mm
-270	0.139 inch	8.984 inch	3.53 mm	228.19 mm
-271	0.139 inch	9.234 inch	3.53 mm	234.54 mm
-272	0.139 inch	9.484 inch	3.53 mm	240.89 mm
-273	0.139 inch	9.734 inch	3.53 mm	247.24 mm
-274	0.139 inch	9.984 inch	3.53 mm	253.59 mm
-275	0.139 inch	10.484 inch	3.53 mm	266.29 mm
-276	0.139 inch	10.984 inch	3.53 mm	278.99 mm
-277	0.139 inch	11.484 inch	3.53 mm	291.69 mm
-278	0.139 inch	11.984 inch	3.53 mm	304.39 mm
-279	0.139 inch	12.984 inch	3.53 mm	329.79 mm
-280	0.139 inch	13.984 inch	3.53 mm	355.19 mm
-281	0.139 inch	14.984 inch	3.53 mm	380.59 mm
-309	0.21 inch	0.412 inch	5.33 mm	10.46 mm
-310	0.21 inch	0.475 inch	5.33 mm	12.07 mm
-311	0.21 inch	0.537 inch	5.33 mm	13.64 mm
-312	0.21 inch	0.6 inch	5.33 mm	15.24 mm
-313	0.21 inch	0.662 inch	5.33 mm	16.81 mm
-314	0.21 inch	0.725 inch	5.33 mm	18.42 mm
-315	0.21 inch	0.787 inch	5.33 mm	19.99 mm
-316	0.21 inch	0.85 inch	5.33 mm	21.59 mm
-317	0.21 inch	0.912 inch	5.33 mm	23.16 mm
-318	0.21 inch	0.975 inch	5.33 mm	24.77 mm
-319	0.21 inch	1.037 inch	5.33 mm	26.34 mm
-320	0.21 inch	1.1 inch	5.33 mm	27.94 mm
-321	0.21 inch	1.162 inch	5.33 mm	29.51 mm
-322	0.21 inch	1.225 inch	5.33 mm	31.12 mm
-323	0.21 inch	1.287 inch	5.33 mm	32.69 mm
-324	0.21 inch	1.35 inch	5.33 mm	34.29 mm
-325	0.21 inch	1.475 inch	5.33 mm	37.47 mm
-326	0.21 inch	1.6 inch	5.33 mm	40.64 mm
-327	0.21 inch	1.725 inch	5.33 mm	43.82 mm
-328	0.21 inch	1.85 inch	5.33 mm	46.99 mm
-329	0.21 inch	1.975 inch	5.33 mm	50.17 mm
-330	0.21 inch	2.1 inch	5.33 mm	53.34 mm
-331	0.21 inch	2.225 inch	5.33 mm	56.52 mm
-332	0.21 inch	2.35 inch	5.33 mm	59.69 mm
-333	0.21 inch	2.475 inch	5.33 mm	62.87 mm
-334	0.21 inch	2.6 inch	5.33 mm	66.04 mm
-335	0.21 inch	2.725 inch	5.33 mm	69.22 mm
-336	0.21 inch	2.85 inch	5.33 mm	72.39 mm
-619	0.21 inch	2.938 inch	5.33 mm	74.61 mm
-337	0.21 inch	2.975 inch	5.33 mm	75.57 mm
-338	0.21 inch	3.1 inch	5.33 mm	78.74 mm
-620	0.21 inch	3.141 inch	5.33 mm	79.78 mm
-339	0.21 inch	3.225 inch	5.33 mm	81.92 mm
-340	0.21 inch	3.35 inch	5.33 mm	85.09 mm
-341	0.21 inch	3.475 inch	5.33 mm	88.27 mm
-621	0.21 inch	3.531 inch	5.33 mm	89.69 mm
-342	0.21 inch	3.6 inch	5.33 mm	91.44 mm
-343	0.21 inch	3.725 inch	5.33 mm	94.62 mm
-344	0.21 inch	3.85 inch	5.33 mm	97.79 mm
-622	0.21 inch	3.937 inch	5.33 mm	100 mm
-345	0.21 inch	3.975 inch	5.33 mm	100.97 mm
-346	0.21 inch	4.1 inch	5.33 mm	104.14 mm
-347	0.21 inch	4.225 inch	5.33 mm	107.32 mm
-623	0.21 inch	4.313 inch	5.33 mm	109.54 mm
-348	0.21 inch	4.35 inch	5.33 mm	110.49 mm
-349	0.21 inch	4.475 inch	5.33 mm	113.67 mm
-350	0.21 inch	4.6 inch	5.33 mm	116.84 mm
-860	0.21 inch	4.625 inch	5.33 mm	117.48 mm
-351	0.21 inch	4.725 inch	5.33 mm	120.02 mm
-861	0.21 inch	4.75 inch	5.33 mm	120.65 mm
-352	0.21 inch	4.85 inch	5.33 mm	123.19 mm
-862	0.21 inch	4.875 inch	5.33 mm	123.83 mm
-353	0.21 inch	4.975 inch	5.33 mm	126.37 mm
-863	0.21 inch	5 inch	5.33 mm	127 mm
-354	0.21 inch	5.1 inch	5.33 mm	129.54 mm
-864	0.21 inch	5.125 inch	5.33 mm	130.18 mm
-355	0.21 inch	5.225 inch	5.33 mm	132.72 mm
-865	0.21 inch	5.25 inch	5.33 mm	133.35 mm
-356	0.21 inch	5.35 inch	5.33 mm	135.89 mm
-866	0.21 inch	5.375 inch	5.33 mm	136.53 mm
-357	0.21 inch	5.475 inch	5.33 mm	139.07 mm
-867	0.21 inch	5.5 inch	5.33 mm	139.7 mm
-358	0.21 inch	5.6 inch	5.33 mm	142.24 mm
-868	0.21 inch	5.625 inch	5.33 mm	142.88 mm
-359	0.21 inch	5.725 inch	5.33 mm	145.42 mm
-869	0.21 inch	5.75 inch	5.33 mm	146.05 mm
-360	0.21 inch	5.85 inch	5.33 mm	148.59 mm
-870	0.21 inch	5.875 inch	5.33 mm	149.23 mm
-361	0.21 inch	5.975 inch	5.33 mm	151.77 mm
-644	0.21 inch	6.1 inch	5.33 mm	154.94 mm
-362	0.21 inch	6.225 inch	5.33 mm	158.12 mm
-645	0.21 inch	6.35 inch	5.33 mm	161.29 mm
-363	0.21 inch	6.475 inch	5.33 mm	164.47 mm
-646	0.21 inch	6.6 inch	5.33 mm	167.64 mm
-364	0.21 inch	6.725 inch	5.33 mm	170.82 mm
-647	0.21 inch	6.85 inch	5.33 mm	173.99 mm
-365	0.21 inch	6.975 inch	5.33 mm	177.17 mm
-366	0.21 inch	7.225 inch	5.33 mm	183.52 mm
-367	0.21 inch	7.475 inch	5.33 mm	189.87 mm
-368	0.21 inch	7.725 inch	5.33 mm	196.22 mm
-369	0.21 inch	7.975 inch	5.33 mm	202.57 mm
-370	0.21 inch	8.225 inch	5.33 mm	208.92 mm
-371	0.21 inch	8.475 inch	5.33 mm	215.27 mm
-372	0.21 inch	8.725 inch	5.33 mm	221.62 mm
-373	0.21 inch	8.975 inch	5.33 mm	227.97 mm
-374	0.21 inch	9.225 inch	5.33 mm	234.32 mm
-375	0.21 inch	9.475 inch	5.33 mm	240.67 mm
-376	0.21 inch	9.725 inch	5.33 mm	247.02 mm
-377	0.21 inch	9.975 inch	5.33 mm	253.37 mm
-378	0.21 inch	10.475 inch	5.33 mm	266.07 mm
-379	0.21 inch	10.975 inch	5.33 mm	278.77 mm
-380	0.21 inch	11.475 inch	5.33 mm	291.47 mm
-381	0.21 inch	11.975 inch	5.33 mm	304.17 mm
-382	0.21 inch	12.975 inch	5.33 mm	329.57 mm
-383	0.21 inch	13.975 inch	5.33 mm	354.97 mm
-384	0.21 inch	14.975 inch	5.33 mm	380.37 mm
-385	0.21 inch	15.955 inch	5.33 mm	405.26 mm
-386	0.21 inch	16.955 inch	5.33 mm	430.66 mm
-387	0.21 inch	17.955 inch	5.33 mm	456.06 mm
-388	0.21 inch	18.955 inch	5.33 mm	481.46 mm
-389	0.21 inch	19.955 inch	5.33 mm	506.86 mm
-390	0.21 inch	20.955 inch	5.33 mm	532.26 mm
-391	0.21 inch	21.955 inch	5.33 mm	557.66 mm
-392	0.21 inch	22.94 inch	5.33 mm	582.68 mm
-393	0.21 inch	23.94 inch	5.33 mm	608.08 mm
-394	0.21 inch	24.94 inch	5.33 mm	633.48 mm
-395	0.21 inch	25.94 inch	5.33 mm	658.88 mm
-425	0.275 inch	4.475 inch	6.99 mm	113.67 mm
-624	0.275 inch	4.516 inch	6.99 mm	114.71 mm
-426	0.275 inch	4.6 inch	6.99 mm	116.84 mm
-427	0.275 inch	4.725 inch	6.99 mm	120.02 mm
-428	0.275 inch	4.85 inch	6.99 mm	123.19 mm
-625	0.275 inch	4.906 inch	6.99 mm	124.61 mm
-429	0.275 inch	4.975 inch	6.99 mm	126.37 mm
-430	0.275 inch	5.1 inch	6.99 mm	129.54 mm
-431	0.275 inch	5.225 inch	6.99 mm	132.72 mm
-626	0.275 inch	5.297 inch	6.99 mm	134.54 mm
-432	0.275 inch	5.35 inch	6.99 mm	135.89 mm
-433	0.275 inch	5.475 inch	6.99 mm	139.07 mm
-434	0.275 inch	5.6 inch	6.99 mm	142.24 mm
-435	0.275 inch	5.725 inch	6.99 mm	145.42 mm
-436	0.275 inch	5.85 inch	6.99 mm	148.59 mm
-437	0.275 inch	5.975 inch	6.99 mm	151.77 mm
-872	0.275 inch	6.125 inch	6.99 mm	155.58 mm
-438	0.275 inch	6.225 inch	6.99 mm	158.12 mm
-627	0.275 inch	6.281 inch	6.99 mm	159.54 mm
-874	0.275 inch	6.375 inch	6.99 mm	161.93 mm
-439	0.275 inch	6.475 inch	6.99 mm	164.47 mm
-628	0.275 inch	6.563 inch	6.99 mm	166.7 mm
-876	0.275 inch	6.625 inch	6.99 mm	168.28 mm
-440	0.275 inch	6.725 inch	6.99 mm	170.82 mm
-878	0.275 inch	6.875 inch	6.99 mm	174.63 mm
-441	0.275 inch	6.975 inch	6.99 mm	177.17 mm
-880	0.275 inch	7.125 inch	6.99 mm	180.98 mm
-442	0.275 inch	7.225 inch	6.99 mm	183.52 mm
-882	0.275 inch	7.375 inch	6.99 mm	187.33 mm
-443	0.275 inch	7.475 inch	6.99 mm	189.87 mm
-884	0.275 inch	7.625 inch	6.99 mm	193.68 mm
-444	0.275 inch	7.725 inch	6.99 mm	196.22 mm
-886	0.275 inch	7.875 inch	6.99 mm	200.03 mm
-445	0.275 inch	7.975 inch	6.99 mm	202.57 mm
-445A	0.275 inch	8.225 inch	6.99 mm	208.92 mm
-446	0.275 inch	8.475 inch	6.99 mm	215.27 mm
-446A	0.275 inch	8.725 inch	6.99 mm	221.62 mm
-447	0.275 inch	8.975 inch	6.99 mm	227.97 mm
-447A	0.275 inch	9.225 inch	6.99 mm	234.32 mm
-448	0.275 inch	9.475 inch	6.99 mm	240.67 mm
-448A	0.275 inch	9.725 inch	6.99 mm	247.02 mm
-449	0.275 inch	9.975 inch	6.99 mm	253.37 mm
-449A	0.275 inch	10.225 inch	6.99 mm	259.72 mm
-450	0.275 inch	10.475 inch	6.99 mm	266.07 mm
-450A	0.275 inch	10.725 inch	6.99 mm	272.42 mm
-451	0.275 inch	10.975 inch	6.99 mm	278.77 mm
-451A	0.275 inch	11.225 inch	6.99 mm	285.12 mm
-452	0.275 inch	11.475 inch	6.99 mm	291.47 mm
-452A	0.275 inch	11.725 inch	6.99 mm	297.82 mm
-453	0.275 inch	11.975 inch	6.99 mm	304.17 mm
-648	0.275 inch	12.225 inch	6.99 mm	310.52 mm
-454	0.275 inch	12.475 inch	6.99 mm	316.87 mm
-649	0.275 inch	12.725 inch	6.99 mm	323.22 mm
-455	0.275 inch	12.975 inch	6.99 mm	329.57 mm
-650	0.275 inch	13.225 inch	6.99 mm	335.92 mm
-456	0.275 inch	13.475 inch	6.99 mm	342.27 mm
-457	0.275 inch	13.9751 inch	6.99 mm	354.97 mm
-458	0.275 inch	14.475 inch	6.99 mm	367.67 mm
-459	0.275 inch	14.9751 inch	6.99 mm	380.37 mm
-460	0.275 inch	15.475 inch	6.99 mm	393.07 mm
-461	0.275 inch	15.9551 inch	6.99 mm	405.26 mm
-462	0.275 inch	16.455 inch	6.99 mm	417.96 mm
-463	0.275 inch	16.9551 inch	6.99 mm	430.66 mm
-464	0.275 inch	17.455 inch	6.99 mm	443.36 mm
-465	0.275 inch	17.955 inch	6.99 mm	456.06 mm
-466	0.275 inch	18.455 inch	6.99 mm	468.76 mm
-467	0.275 inch	18.955 inch	6.99 mm	481.46 mm
-468	0.275 inch	19.455 inch	6.99 mm	494.16 mm
-469	0.275 inch	19.955 inch	6.99 mm	506.86 mm
-470	0.275 inch	20.955 inch	6.99 mm	532.26 mm
-471	0.275 inch	21.955 inch	6.99 mm	557.66 mm
-472	0.275 inch	22.94 inch	6.99 mm	582.68 mm
-473	0.275 inch	23.94 inch	6.99 mm	608.08 mm
-474	0.275 inch	24.94 inch	6.99 mm	633.48 mm
-475	0.275 inch	25.9401 inch	6.99 mm	658.88 mm