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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-01-011-7057 (F-375-B-007-SK-A)

NIIN: 01-011-7057
In stock
NSN: 5331-01-011-7057
FSC Code: 5331
MPN: F375B007SKA

5331-01-011-7055 (F-375-B-005-SK-A)

NIIN: 01-011-7055
In stock
NSN: 5331-01-011-7055
FSC Code: 5331
MPN: F375B005SKA

5331-01-323-8416 (F37030276-SN8931000332)

NIIN: 01-323-8416
In stock
NSN: 5331-01-323-8416
FSC Code: 5331
MPN: F37030276SN8931000332

5331-01-315-4826 (F37030276-SN893)

NIIN: 01-315-4826
In stock
NSN: 5331-01-315-4826
FSC Code: 5331
MPN: F37030276SN893

5331-01-276-1669 (F37040323)

NIIN: 01-276-1669
In stock
NSN: 5331-01-276-1669
FSC Code: 5331
MPN: F37040323

5331-01-323-8413 (F37030250-SN8931000332)

NIIN: 01-323-8413
In stock
NSN: 5331-01-323-8413
FSC Code: 5331
MPN: F37030250SN8931000332

5331-01-323-8415 (F37030262-SN8931000332)

NIIN: 01-323-8415
In stock
NSN: 5331-01-323-8415
FSC Code: 5331
MPN: F37030262SN8931000332

5331-01-160-9860 (F37030-243)

NIIN: 01-160-9860
In stock
NSN: 5331-01-160-9860
FSC Code: 5331
MPN: F37030243

5331-01-323-8414 (F37030221-SN8931000332)

NIIN: 01-323-8414
In stock
NSN: 5331-01-323-8414
FSC Code: 5331
MPN: F37030221SN8931000332

5331-01-315-4825 (F37030221-SN893)

NIIN: 01-315-4825
In stock
NSN: 5331-01-315-4825
FSC Code: 5331
MPN: F37030221SN893

5331-01-181-2511 (F37020-112)

NIIN: 01-181-2511
In stock
NSN: 5331-01-181-2511
FSC Code: 5331
MPN: F37020112

5331-00-548-6003 (F37010-012)

NIIN: 00-548-6003
In stock
NSN: 5331-00-548-6003
FSC Code: 5331
MPN: F37010012

5331-01-296-7686 (F37010045E)

NIIN: 01-296-7686
In stock
NSN: 5331-01-296-7686
FSC Code: 5331
MPN: F37010045E

5331-01-144-6178 (F35658-02642)

NIIN: 01-144-6178
In stock
NSN: 5331-01-144-6178
FSC Code: 5331
MPN: F3565802642

5331-01-228-0436 (F3353R)

NIIN: 01-228-0436
In stock
NSN: 5331-01-228-0436
FSC Code: 5331
MPN: F3353R

5331-01-126-9499 (F34822-05948)

NIIN: 01-126-9499
In stock
NSN: 5331-01-126-9499
FSC Code: 5331
MPN: F3482205948

5331-01-138-7675 (F32213G1)

NIIN: 01-138-7675
In stock
NSN: 5331-01-138-7675
FSC Code: 5331
MPN: F32213G1

5331-01-086-3508 (F317185)

NIIN: 01-086-3508
In stock
NSN: 5331-01-086-3508
FSC Code: 5331
MPN: F317185

5331-01-434-7302 (71835-0)

NIIN: 01-434-7302
In stock
NSN: 5331-01-434-7302
FSC Code: 5331
MPN: 718350

5331-01-312-4815 (F28E)

NIIN: 01-312-4815
In stock
NSN: 5331-01-312-4815
FSC Code: 5331
MPN: F28E

5331-01-337-9052 (F2885-4IN)

NIIN: 01-337-9052
In stock
NSN: 5331-01-337-9052
FSC Code: 5331
MPN: F28854IN

5331-01-338-6646 (F2885-3IN.)

NIIN: 01-338-6646
In stock
NSN: 5331-01-338-6646
FSC Code: 5331
MPN: F28853IN

5331-01-338-5550 (F2885-2.50IN)

NIIN: 01-338-5550
In stock
NSN: 5331-01-338-5550
FSC Code: 5331
MPN: F2885250IN

5331-01-197-0888 (F2741R)

NIIN: 01-197-0888
In stock
NSN: 5331-01-197-0888
FSC Code: 5331
MPN: F2741R

5331-01-312-7161 (F2573R)

NIIN: 01-312-7161
In stock
NSN: 5331-01-312-7161
FSC Code: 5331
MPN: F2573R

5331-01-062-8788 (F26189-05463)

NIIN: 01-062-8788
In stock
NSN: 5331-01-062-8788
FSC Code: 5331
MPN: F2618905463

5331-01-330-9608 (F23166)

NIIN: 01-330-9608
In stock
NSN: 5331-01-330-9608
FSC Code: 5331
MPN: F23166

5331-01-334-9948 (F23165)

NIIN: 01-334-9948
In stock
NSN: 5331-01-334-9948
FSC Code: 5331
MPN: F23165

5331-01-173-3422 (F1D10231)

NIIN: 01-173-3422
In stock
NSN: 5331-01-173-3422
FSC Code: 5331
MPN: F1D10231

5331-01-337-3175 (F1D10057-05)

NIIN: 01-337-3175
In stock
NSN: 5331-01-337-3175
FSC Code: 5331
MPN: F1D1005705

5331-01-173-3421 (F1D10231)

NIIN: 01-173-3421
In stock
NSN: 5331-01-173-3421
FSC Code: 5331
MPN: F1D10231

5331-01-289-4927 (F-191D)

NIIN: 01-289-4927
In stock
NSN: 5331-01-289-4927
FSC Code: 5331
MPN: F191D

5331-01-298-3052 (F191D)

NIIN: 01-298-3052
In stock
NSN: 5331-01-298-3052
FSC Code: 5331
MPN: F191D

5331-01-289-4926 (F-191)

NIIN: 01-289-4926
In stock
NSN: 5331-01-289-4926
FSC Code: 5331
MPN: F191

5331-01-298-7701 (F180D)

NIIN: 01-298-7701
In stock
NSN: 5331-01-298-7701
FSC Code: 5331
MPN: F180D

5331-01-239-7913 (F-172)

NIIN: 01-239-7913
In stock
NSN: 5331-01-239-7913
FSC Code: 5331
MPN: F172

5331-01-314-2966 (F1649R)

NIIN: 01-314-2966
In stock
NSN: 5331-01-314-2966
FSC Code: 5331
MPN: F1649R

5331-01-240-5997 (F-161)

NIIN: 01-240-5997
In stock
NSN: 5331-01-240-5997
FSC Code: 5331
MPN: F161

5331-01-255-2567 (F1430R)

NIIN: 01-255-2567
In stock
NSN: 5331-01-255-2567
FSC Code: 5331
MPN: F1430R

5331-01-240-5996 (F-147)

NIIN: 01-240-5996
In stock
NSN: 5331-01-240-5996
FSC Code: 5331
MPN: F147

5331-00-865-2803 (F125-10)

NIIN: 00-865-2803
In stock
NSN: 5331-00-865-2803
FSC Code: 5331
MPN: F12510

5331-00-865-0905 (F11623)

NIIN: 00-865-0905
In stock
NSN: 5331-00-865-0905
FSC Code: 5331
MPN: F11623

5331-01-246-2773 (F10112)

NIIN: 01-246-2773
In stock
NSN: 5331-01-246-2773
FSC Code: 5331
MPN: F10112

5331-01-266-1080 (F05-011-10C)

NIIN: 01-266-1080
In stock
NSN: 5331-01-266-1080
FSC Code: 5331
MPN: F0501110C

5331-01-293-6130 (EVB-CGB1-6)

NIIN: 01-293-6130
In stock
NSN: 5331-01-293-6130
FSC Code: 5331
MPN: EVBCGB16

5331-01-292-9450 (EVB-CGB1-3)

NIIN: 01-292-9450
In stock
NSN: 5331-01-292-9450
FSC Code: 5331
MPN: EVBCGB13

5331-01-146-9842 (EVA-25)

NIIN: 01-146-9842
In stock
NSN: 5331-01-146-9842
FSC Code: 5331
MPN: EVA25

5331-01-100-0400 (EU-114)

NIIN: 01-100-0400
In stock
NSN: 5331-01-100-0400
FSC Code: 5331
MPN: EU114