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MILITARY & AEROSPACE SPEC O-RINGS

Compounds are approved to nearly every military, aerospace, ASTM, SAE, automotive, petroleum industry and commercial specification. The most commonly used specifications are the AMS, AS, AN, M, MS, MIL, and NAS specifications. 

Specifications indicated by asterisk (*) require that the o-ring manufacturer be on The Qualified Products List (QPL).

MILITARY & AEROSPACE SPEC O-RINGS

Part Number

Drawing

Specification

Material

Durometer
+/- 5

N/A

N/A

AMS 3209

Neoprene (CR)

70

N/A

N/A

AMS 3325

Fluorosilicone (FVMQ)

60

N/A

N/A

AMS 3384

Fluorocarbon (FKM)

75

N/A

N/A

AMS 7257*

Fluorocarbon (FKM)

75

AS3581

AS3581

AMS 7259*

Fluorocarbon (FKM)

90

AS3569

AS3569

AMS 7270*

Nitrile (NBR)

70

AS3578

AS3578

AMS 7271*

Nitrile (NBR)

65

AS3570

AS3570

AMS 7274*

Nitrile (NBR)

70

AS3208

AS3208

AMS 7276*

Fluorocarbon (FKM)

75

AS3209

AS3209

AMS 7276*

Fluorocarbon (FKM)

75

M83485

AS83485

AMS 7287*

Fluorocarbon (FKM)

75

MS29512

AS29512

AMS P 5315*

Nitrile (NBR)

65

MS29513

AS29513

AMS P 5315*

Nitrile (NBR)

65

MS28778

AS28778

AMS P 5510*

Nitrile (NBR)

90

M83461/1

AS83461/1

AMS P 83461*

Nitrile (NBR)

70

M83461/2

AS83461/2

AMS P 83461*

Nitrile (NBR)

70

MS29561

AS29561

AMS R 7362 Ty I

Nitrile (NBR)

70

M25988/3

MIL-R-25988/3

MIL DTL 25988 Ty I Cl 1 Gr 60

Fluorosilicone (FVMQ)

60

M25988/1

MIL-R-25988/1

MIL DTL 25988 Ty I Cl 1 Gr 70

Fluorosilicone (FVMQ)

70

M25988/2

MIL-R-25988/2

MIL DTL 25988 Ty I Cl 3 Gr 75

Fluorosilicone (FVMQ)

75

MS25988/4

MIL-R-25988/4

MIL DTL 25988 Ty I Cl 1 Gr 80

Fluorosilicone (FVMQ)

80

N/A

N/A

MIL G 21569 Cl 1

Nitrile (NBR)

70

M22050-1

N/A

MIL G 22050 Gr 1

Ethylene Propylene Diene (EPDM)

65

M22050-1

N/A

MIL G 22050 Gr 2

Ethylene Propylene Diene (EPDM)

80

MS28775

AS28775

MIL P 25732*

Nitrile (NBR)

70

N/A

N/A

MIL P 82745

Nitrile (NBR)

70

N/A

N/A

MIL PRF 1149 Ty I Cl 1

Neoprene (CR)

50

N/A

N/A

MIL PRF 1149 Ty I Cl 2

Silicone (SBR)

50

N/A

N/A

MIL PRF 1149 Ty I Cl 5

Nitrile (NBR)

50

N/A

N/A

MIL PRF 1149 Ty II Cl 1

Neoprene (CR)

65

N/A

N/A

MIL PRF 1149 Ty II Cl 5

Nitrile (NBR)

65

N/A

N/A

MIL PRF 1149 Ty II Cl 2

Silicone (SBR)

65

N/A

N/A

MIL PRF 6855 Cl 2A Ty A Gr 60

Neoprene (CR)

60

N/A

N/A

MIL PRF 6855 Cl 1 Ty A Gr 40

Nitrile (NBR)

40

N/A

N/A

MIL PRF 6855 Cl 1 Ty A Gr 50

Nitrile (NBR)

50

N/A

N/A

MIL PRF 6855 Cl 1 Ty A Gr 60

Nitrile (NBR)

60