Skip to content

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.

5331-01-162-8401 (2AW634)

NIIN: 01-162-8401
In stock
NSN: 5331-01-162-8401
FSC Code: 5331
MPN: 2AW634

5331-01-159-6408 (2AW625)

NIIN: 01-159-6408
In stock
NSN: 5331-01-159-6408
FSC Code: 5331
MPN: 2AW625

5331-01-159-6407 (2AW620)

NIIN: 01-159-6407
In stock
NSN: 5331-01-159-6407
FSC Code: 5331
MPN: 2AW620

5331-01-158-5343 (2AW591)

NIIN: 01-158-5343
In stock
NSN: 5331-01-158-5343
FSC Code: 5331
MPN: 2AW591

5331-01-159-6405 (2AW603)

NIIN: 01-159-6405
In stock
NSN: 5331-01-159-6405
FSC Code: 5331
MPN: 2AW603

5331-01-159-8365 (2AW596)

NIIN: 01-159-8365
In stock
NSN: 5331-01-159-8365
FSC Code: 5331
MPN: 2AW596

5331-01-282-7426 (2AW50)

NIIN: 01-282-7426
In stock
NSN: 5331-01-282-7426
FSC Code: 5331
MPN: 2AW50

5331-01-164-6309 (2AN485)

NIIN: 01-164-6309
In stock
NSN: 5331-01-164-6309
FSC Code: 5331
MPN: 2AN485

5331-01-154-0642 (2AF55)

NIIN: 01-154-0642
In stock
NSN: 5331-01-154-0642
FSC Code: 5331
MPN: 2AF55

5331-01-145-0706 (2AG283)

NIIN: 01-145-0706
In stock
NSN: 5331-01-145-0706
FSC Code: 5331
MPN: 2AG283

5331-01-154-0641 (2AF29)

NIIN: 01-154-0641
In stock
NSN: 5331-01-154-0641
FSC Code: 5331
MPN: 2AF29

5331-01-153-9106 (2AF22)

NIIN: 01-153-9106
In stock
NSN: 5331-01-153-9106
FSC Code: 5331
MPN: 2AF22

5331-01-154-0643 (2AF56)

NIIN: 01-154-0643
In stock
NSN: 5331-01-154-0643
FSC Code: 5331
MPN: 2AF56

5331-01-153-9105 (2AF21)

NIIN: 01-153-9105
In stock
NSN: 5331-01-153-9105
FSC Code: 5331
MPN: 2AF21

5331-01-086-1613 (2AB6)

NIIN: 01-086-1613
In stock
NSN: 5331-01-086-1613
FSC Code: 5331
MPN: 2AB6

5331-00-548-6112 (2A817)

NIIN: 00-548-6112
In stock
NSN: 5331-00-548-6112
FSC Code: 5331
MPN: 2A817

5331-00-361-1916 (2A3854)

NIIN: 00-361-1916
In stock
NSN: 5331-00-361-1916
FSC Code: 5331
MPN: 2A3854

5331-00-599-0957 (2A3791)

NIIN: 00-599-0957
In stock
NSN: 5331-00-599-0957
FSC Code: 5331
MPN: 2A3791

5331-00-291-9182 (2A3307)

NIIN: 00-291-9182
In stock
NSN: 5331-00-291-9182
FSC Code: 5331
MPN: 2A3307

5331-01-057-8066 (2A13-12)

NIIN: 01-057-8066
In stock
NSN: 5331-01-057-8066
FSC Code: 5331
MPN: 2A1312

5331-01-082-3342 (2A13-22)

NIIN: 01-082-3342
In stock
NSN: 5331-01-082-3342
FSC Code: 5331
MPN: 2A1322

5331-01-173-6613 (2A1-178-4)

NIIN: 01-173-6613
In stock
NSN: 5331-01-173-6613
FSC Code: 5331
MPN: 2A11784

5331-01-173-6614 (2A1-161-3)

NIIN: 01-173-6614
In stock
NSN: 5331-01-173-6614
FSC Code: 5331
MPN: 2A11613

5331-01-218-3228 (2A0283-9022)

NIIN: 01-218-3228
In stock
NSN: 5331-01-218-3228
FSC Code: 5331
MPN: 2A02839022

5331-00-558-1480 (2A0283-7210)

NIIN: 00-558-1480
In stock
NSN: 5331-00-558-1480
FSC Code: 5331
MPN: 2A02837210

5331-01-218-3227 (2A0283-9916)

NIIN: 01-218-3227
In stock
NSN: 5331-01-218-3227
FSC Code: 5331
MPN: 2A02839916

5331-00-070-2146 (29M09-44)

NIIN: 00-070-2146
In stock
NSN: 5331-00-070-2146
FSC Code: 5331
MPN: 29M0944

5331-01-063-3730 (2-9T)

NIIN: 01-063-3730
In stock
NSN: 5331-01-063-3730
FSC Code: 5331
MPN: 29T

5331-01-421-3057 (100172CA2)

NIIN: 01-421-3057
In stock
NSN: 5331-01-421-3057
FSC Code: 5331
MPN: 100172CA2

5331-01-357-3943 (100-163-8815)

NIIN: 01-357-3943
In stock
NSN: 5331-01-357-3943
FSC Code: 5331
MPN: 1001638815

5331-01-382-8088 (10015B-UB)

NIIN: 01-382-8088
In stock
NSN: 5331-01-382-8088
FSC Code: 5331
MPN: 10015BUB

5331-01-357-3944 (100-158-8815)

NIIN: 01-357-3944
In stock
NSN: 5331-01-357-3944
FSC Code: 5331
MPN: 1001588815

5331-01-178-8606 (29A25105-102-11)

NIIN: 01-178-8606
In stock
NSN: 5331-01-178-8606
FSC Code: 5331
MPN: 29A2510510211

5331-01-362-7304 (30-781-1209-01)

NIIN: 01-362-7304
In stock
NSN: 5331-01-362-7304
FSC Code: 5331
MPN: 30781120901

5331-00-427-8666 (29A25105-105-11)

NIIN: 00-427-8666
In stock
NSN: 5331-00-427-8666
FSC Code: 5331
MPN: 29A2510510511

5331-00-427-8667 (29A25105-102-11)

NIIN: 00-427-8667
In stock
NSN: 5331-00-427-8667
FSC Code: 5331
MPN: 29A2510510211

5331-00-432-8562 (29A25105-103-11)

NIIN: 00-432-8562
In stock
NSN: 5331-00-432-8562
FSC Code: 5331
MPN: 29A2510510311

5331-99-417-3228 (FL1421AISSUE18ITEM62)

NIIN: 99-417-3228
In stock
NSN: 5331-99-417-3228
FSC Code: 5331
MPN: FL1421AISSUE18ITEM62

5331-01-524-8593 (LP495-103X1-13-16)

NIIN: 01-524-8593
In stock
NSN: 5331-01-524-8593
FSC Code: 5331
MPN: LP495103X11316

5331-00-676-8062 (299C413P3)

NIIN: 00-676-8062
In stock
NSN: 5331-00-676-8062
FSC Code: 5331
MPN: 299C413P3

5331-99-143-3123 (100-136-8810)

NIIN: 99-143-3123
In stock
NSN: 5331-99-143-3123
FSC Code: 5331
MPN: 1001368810

5331-00-809-3640 (299C413P5)

NIIN: 00-809-3640
In stock
NSN: 5331-00-809-3640
FSC Code: 5331
MPN: 299C413P5

5331-99-808-3287 (100-130-0105)

NIIN: 99-808-3287
In stock
NSN: 5331-99-808-3287
FSC Code: 5331
MPN: 1001300105

5331-00-618-4422 (299C413P8)

NIIN: 00-618-4422
In stock
NSN: 5331-00-618-4422
FSC Code: 5331
MPN: 299C413P8

5331-01-524-8592 (LP495-103X1-5-8)

NIIN: 01-524-8592
In stock
NSN: 5331-01-524-8592
FSC Code: 5331
MPN: LP495103X158

5331-00-686-2352 (299C413P6)

NIIN: 00-686-2352
In stock
NSN: 5331-00-686-2352
FSC Code: 5331
MPN: 299C413P6

5331-01-468-0699 (10012-7186)

NIIN: 01-468-0699
In stock
NSN: 5331-01-468-0699
FSC Code: 5331
MPN: 100127186

5331-00-618-4415 (299C413P10)

NIIN: 00-618-4415
In stock
NSN: 5331-00-618-4415
FSC Code: 5331
MPN: 299C413P10