McMaster-Carr

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	Specifications Met Specifications Met	Show

Mil. Spec.

MIL-P-83461

	Specifications Met Specifications Met	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

3-A Sanitary Certified

ANSI

ASTM

DIN

FDA Compliant

ISO

JIS/JASO Standards

Mil. Spec.

MIL-P-83461

NFPA

NSF/ANSI

SAE

USP

	Cross Section Shape Cross Section Shape

	Round

	Dash Number Dash Number

003
005
011
012
014
015
016
017
018
019
020
021
022
029
030
035
036
038
040
042
043
044
110
113
114
115
117
119
120
127
129
130
140
146
152
158
159
163
206
208
217
218
220
225
226
227
228
229
230
233
234
236
246
249
251
264
372
433

	Material Material

Rubber

	Hardness Hardness

Durometer 70A

	System of Measurement System of Measurement

Inch

	Width Width

	ID ID

	OD OD

	Color Color

	Black

	Minimum Temperature Minimum Temperature

-99° to -50° F

	Hardness Rating Hardness Rating

	Medium

	Maximum Temperature Maximum Temperature

250° to 299° F

	Fractional OD Fractional OD

	Fractional Width Fractional Width

	For Use With For Use With

	Fractional ID Fractional ID

58 Products

About O-Rings

Choose these O-rings for their adherence to strict military standards for material and construction. Made of Buna-N, they are resilient and offer resistance to tearing, motor oil, ammonia, ethylene glycol, isopropyl alcohol, and mineral oil. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

For technical drawings and 3-D models, click on a part number.

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temp. Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 1/16 Fractional (0.060" Actual)
003	1/16	3/16	0.056"	0.176"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	000000
Wd.: 1/16 Fractional (0.070" Actual)
005	3/32	7/32	0.101"	0.241"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
011	5/16	7/16	0.301"	0.441"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
012	3/8	1/2	0.364"	0.504"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
014	1/2	5/8	0.489"	0.629"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
015	9/16	11/16	0.551"	0.691"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
016	5/8	3/4	0.614"	0.754"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
017	11/16	13/16	0.676"	0.816"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
018	3/4	7/8	0.739"	0.879"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
019	13/16	15/16	0.801"	0.941"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
020	7/8	1	0.864"	1.004"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	0000000	00000
021	15/16	1 1/16	0.926"	1.066"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
022	1	1 1/8	0.989"	1.129"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
029	1 1/2	1 5/8	1.489"	1.629"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
030	1 5/8	1 3/4	1.614"	1.754"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	0000000	00000
035	2 1/4	2 3/8	2.239"	2.379"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
036	2 3/8	2 1/2	2.364"	2.504"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
038	2 5/8	2 3/4	2.614"	2.754"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
040	2 7/8	3	2.864"	3.004"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	0000000	00000
042	3 1/4	3 3/8	3.239"	3.379"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
043	3 1/2	3 5/8	3.489"	3.629"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
044	3 3/4	3 7/8	3.739"	3.879"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
Wd.: 3/32 Fractional (0.103" Actual)
110	3/8	9/16	0.362"	0.568"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
113	9/16	3/4	0.549"	0.755"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
114	5/8	13/16	0.612"	0.818"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
115	11/16	7/8	0.674"	0.880"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
117	13/16	1	0.799"	1.005"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
119	15/16	1 1/8	0.924"	1.130"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
120	1	1 3/16	0.987"	1.193"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
127	1 7/16	1 5/8	1.424"	1.630"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
129	1 9/16	1 3/4	1.549"	1.755"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
130	1 5/8	1 13/16	1.612"	1.818"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
140	2 1/4	2 7/16	2.237"	2.443"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
146	2 5/8	2 13/16	2.612"	2.818"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
152	3 1/4	3 7/16	3.237"	3.443"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
158	4 3/4	4 15/16	4.737"	4.943"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	5	00000000	00000
159	5	5 3/16	4.987"	5.193"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	5	00000000	00000
163	6	6 3/16	5.987"	6.193"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	2	00000000	00000
Wd.: 1/8 Fractional (0.139" Actual)
206	1/2	3/4	0.484"	0.762"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
208	5/8	7/8	0.609"	0.887"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	50	00000000	00000
217	1 3/16	1 7/16	1.171"	1.449"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
218	1 1/4	1 1/2	1.234"	1.512"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
220	1 3/8	1 5/8	1.359"	1.637"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	25	00000000	00000
225	1 7/8	2 1/8	1.859"	2.137"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
226	2	2 1/4	1.984"	2.262"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
227	2 1/8	2 3/8	2.109"	2.387"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
228	2 1/4	2 1/2	2.234"	2.512"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
229	2 3/8	2 5/8	2.359"	2.637"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
230	2 1/2	2 3/4	2.484"	2.762"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
233	2 7/8	3 1/8	2.859"	3.137"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	0000000	00000
234	3	3 1/4	2.984"	3.262"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
236	3 1/4	3 1/2	3.234"	3.512"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	10	00000000	00000
246	4 1/2	4 3/4	4.484"	4.762"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	5	00000000	00000
249	4 7/8	5 1/8	4.859"	5.137"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	5	00000000	00000
251	5 1/8	5 3/8	5.109"	5.387"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	5	00000000	00000
264	7 1/2	7 3/4	7.484"	7.762"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	2	00000000	00000
Wd.: 3/16 Fractional (0.210" Actual)
372	8 3/4	9 1/8	8.725"	9.145"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	2	00000000	00000
Wd.: 1/4 Fractional (0.275" Actual)
433	5 1/2	6	5.475"	6.025"	Durometer 70A (Medium)	ASTM D2000, MIL-P-83461, SAE AS568, SAE J200	-65° to 275°	Black	2	0000000	00000

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About O-Rings

Oil-Resistant Mil. Spec. Buna-N O-Rings