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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.

5331-00-537-3927 (2-283V0747-75)

NIIN: 00-537-3927
In stock
NSN: 5331-00-537-3927
FSC Code: 5331
MPN: 2283V074775

5331-00-580-1264 (2-284N179-70)

NIIN: 00-580-1264
In stock
NSN: 5331-00-580-1264
FSC Code: 5331
MPN: 2284N17970

5331-00-539-6313 (2-284V0747-75)

NIIN: 00-539-6313
In stock
NSN: 5331-00-539-6313
FSC Code: 5331
MPN: 2284V074775

5331-00-338-3909 (2285-300REVBPC22)

NIIN: 00-338-3909
In stock
NSN: 5331-00-338-3909
FSC Code: 5331
MPN: 2285300REVBPC22

5331-00-572-0349 (2285PC13)

NIIN: 00-572-0349
In stock
NSN: 5331-00-572-0349
FSC Code: 5331
MPN: 2285PC13

5331-00-572-0361 (2285PC16)

NIIN: 00-572-0361
In stock
NSN: 5331-00-572-0361
FSC Code: 5331
MPN: 2285PC16

5331-01-312-7153 (2285TT)

NIIN: 01-312-7153
In stock
NSN: 5331-01-312-7153
FSC Code: 5331
MPN: 2285TT

5331-01-026-2718 (228-7507)

NIIN: 01-026-2718
In stock
NSN: 5331-01-026-2718
FSC Code: 5331
MPN: 2287507

5331-01-044-4798 (2-28E515-8)

NIIN: 01-044-4798
In stock
NSN: 5331-01-044-4798
FSC Code: 5331
MPN: 228E5158

5331-01-326-9510 (2-28L1077-75)

NIIN: 01-326-9510
In stock
NSN: 5331-01-326-9510
FSC Code: 5331
MPN: 228L107775

5331-00-005-8186 (228X040-1133-60)

NIIN: 00-005-8186
In stock
NSN: 5331-00-005-8186
FSC Code: 5331
MPN: 228X040113360

5331-01-435-3223 (000-851-855)

NIIN: 01-435-3223
In stock
NSN: 5331-01-435-3223
FSC Code: 5331
MPN: 000851855

5331-01-435-4769 (000-870-264)

NIIN: 01-435-4769
In stock
NSN: 5331-01-435-4769
FSC Code: 5331
MPN: 000870264

5331-14-326-1110 (WA360G02300DC4A)

NIIN: 14-326-1110
In stock
NSN: 5331-14-326-1110
FSC Code: 5331
MPN: WA360G02300DC4A

5331-01-414-8995 (000908EECP)

NIIN: 01-414-8995
In stock
NSN: 5331-01-414-8995
FSC Code: 5331
MPN: 000908EECP

5331-01-422-0692 (000911-20670)

NIIN: 01-422-0692
In stock
NSN: 5331-01-422-0692
FSC Code: 5331
MPN: 00091120670

5331-14-393-5004 (000911-10220)

NIIN: 14-393-5004
In stock
NSN: 5331-14-393-5004
FSC Code: 5331
MPN: 00091110220

5331-01-438-7780 (PLC-11711)

NIIN: 01-438-7780
In stock
NSN: 5331-01-438-7780
FSC Code: 5331
MPN: PLC11711

5331-01-344-3871 (0009-0020/47-071)

NIIN: 01-344-3871
In stock
NSN: 5331-01-344-3871
FSC Code: 5331
MPN: 0009002047071

5331-12-143-7638 (B160-0632-1ITEM4625)

NIIN: 12-143-7638
In stock
NSN: 5331-12-143-7638
FSC Code: 5331
MPN: B16006321ITEM4625

5331-01-352-8154 (000991047-017)

NIIN: 01-352-8154
In stock
NSN: 5331-01-352-8154
FSC Code: 5331
MPN: 000991047017

5331-01-345-2326 (000991625-001)

NIIN: 01-345-2326
In stock
NSN: 5331-01-345-2326
FSC Code: 5331
MPN: 000991625001

5331-99-562-3369 (FRS40117A012)

NIIN: 99-562-3369
In stock
NSN: 5331-99-562-3369
FSC Code: 5331
MPN: FRS40117A012

5331-12-154-6954 (OR14X2-72NBR/872)

NIIN: 12-154-6954
In stock
NSN: 5331-12-154-6954
FSC Code: 5331
MPN: OR14X272NBR872

5331-12-125-1873 (1289954EY8729-05)

NIIN: 12-125-1873
In stock
NSN: 5331-12-125-1873
FSC Code: 5331
MPN: 1289954EY872905

5331-12-330-4290 (925X178MMN429)

NIIN: 12-330-4290
In stock
NSN: 5331-12-330-4290
FSC Code: 5331
MPN: 925X178MMN429

5331-12-143-6504 (0R24X2-5-70NBR769)

NIIN: 12-143-6504
In stock
NSN: 5331-12-143-6504
FSC Code: 5331
MPN: 0R24X2570NBR769

5331-12-310-9311 (607X178MMN429)

NIIN: 12-310-9311
In stock
NSN: 5331-12-310-9311
FSC Code: 5331
MPN: 607X178MMN429

5331-12-158-1553 (6.0690.12.8.0388)

NIIN: 12-158-1553
In stock
NSN: 5331-12-158-1553
FSC Code: 5331
MPN: 606901280388

5331-01-550-8454 (000U-Z015-12)

NIIN: 01-550-8454
In stock
NSN: 5331-01-550-8454
FSC Code: 5331
MPN: 000UZ01512

5331-01-442-6598 (000U-Z015-10)

NIIN: 01-442-6598
In stock
NSN: 5331-01-442-6598
FSC Code: 5331
MPN: 000UZ01510

5331-12-166-3394 (0R76X2-5-70NBR769)

NIIN: 12-166-3394
In stock
NSN: 5331-12-166-3394
FSC Code: 5331
MPN: 0R76X2570NBR769

5331-01-358-7948 (001.05.1352)

NIIN: 01-358-7948
In stock
NSN: 5331-01-358-7948
FSC Code: 5331
MPN: 001051352

5331-01-566-4029 (001.05.0933)

NIIN: 01-566-4029
In stock
NSN: 5331-01-566-4029
FSC Code: 5331
MPN: 001050933

5331-01-544-6742 (000U-Z015-16)

NIIN: 01-544-6742
In stock
NSN: 5331-01-544-6742
FSC Code: 5331
MPN: 000UZ01516

5331-01-525-7125 (001.05.0691)

NIIN: 01-525-7125
In stock
NSN: 5331-01-525-7125
FSC Code: 5331
MPN: 001050691

5331-01-487-4160 (001.05.0818)

NIIN: 01-487-4160
In stock
NSN: 5331-01-487-4160
FSC Code: 5331
MPN: 001050818

5331-01-360-7850 (001.05.1239)

NIIN: 01-360-7850
In stock
NSN: 5331-01-360-7850
FSC Code: 5331
MPN: 001051239

5331-01-487-4157 (001.05.0749)

NIIN: 01-487-4157
In stock
NSN: 5331-01-487-4157
FSC Code: 5331
MPN: 001050749

5331-01-525-7144 (001.05.0808)

NIIN: 01-525-7144
In stock
NSN: 5331-01-525-7144
FSC Code: 5331
MPN: 001050808

5331-01-487-4154 (001.05.1354)

NIIN: 01-487-4154
In stock
NSN: 5331-01-487-4154
FSC Code: 5331
MPN: 001051354

5331-01-528-5027 (001.05.1588)

NIIN: 01-528-5027
In stock
NSN: 5331-01-528-5027
FSC Code: 5331
MPN: 001051588

5331-01-487-4167 (001.05.1526)

NIIN: 01-487-4167
In stock
NSN: 5331-01-487-4167
FSC Code: 5331
MPN: 001051526

5331-01-487-4165 (001.05.1629)

NIIN: 01-487-4165
In stock
NSN: 5331-01-487-4165
FSC Code: 5331
MPN: 001051629

5331-01-487-4171 (001.05.1420)

NIIN: 01-487-4171
In stock
NSN: 5331-01-487-4171
FSC Code: 5331
MPN: 001051420

5331-01-525-7129 (001.05.1598)

NIIN: 01-525-7129
In stock
NSN: 5331-01-525-7129
FSC Code: 5331
MPN: 001051598

5331-01-360-2842 (001.05.1358)

NIIN: 01-360-2842
In stock
NSN: 5331-01-360-2842
FSC Code: 5331
MPN: 001051358

5331-01-525-7116 (001.05.1037)

NIIN: 01-525-7116
In stock
NSN: 5331-01-525-7116
FSC Code: 5331
MPN: 001051037