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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.

5331-01-097-4188 (654E4645-15)

NIIN: 01-097-4188
In stock
NSN: 5331-01-097-4188
FSC Code: 5331
MPN: 654E464515

5331-01-097-4187 (654E4645-9)

NIIN: 01-097-4187
In stock
NSN: 5331-01-097-4187
FSC Code: 5331
MPN: 654E46459

5331-01-292-5380 (654E4645-11)

NIIN: 01-292-5380
In stock
NSN: 5331-01-292-5380
FSC Code: 5331
MPN: 654E464511

5331-01-471-7705 (2769-M23854PC18)

NIIN: 01-471-7705
In stock
NSN: 5331-01-471-7705
FSC Code: 5331
MPN: 2769M23854PC18

5331-00-239-5351 (654158PC1)

NIIN: 00-239-5351
In stock
NSN: 5331-00-239-5351
FSC Code: 5331
MPN: 654158PC1

5331-01-567-7968 (275-9891)

NIIN: 01-567-7968
In stock
NSN: 5331-01-567-7968
FSC Code: 5331
MPN: 2759891

5331-01-390-9917 (275B-DET6)

NIIN: 01-390-9917
In stock
NSN: 5331-01-390-9917
FSC Code: 5331
MPN: 275BDET6

5331-00-947-6795 (65362-00027-104)

NIIN: 00-947-6795
In stock
NSN: 5331-00-947-6795
FSC Code: 5331
MPN: 6536200027104

5331-00-946-5342 (65357-07032-101)

NIIN: 00-946-5342
In stock
NSN: 5331-00-946-5342
FSC Code: 5331
MPN: 6535707032101

5331-00-241-0086 (65358-07063-102)

NIIN: 00-241-0086
In stock
NSN: 5331-00-241-0086
FSC Code: 5331
MPN: 6535807063102

5331-00-143-7307 (65351-11261-127)

NIIN: 00-143-7307
In stock
NSN: 5331-00-143-7307
FSC Code: 5331
MPN: 6535111261127

5331-00-942-1765 (65351-11261-106)

NIIN: 00-942-1765
In stock
NSN: 5331-00-942-1765
FSC Code: 5331
MPN: 6535111261106

5331-00-460-3398 (65351-11261-118)

NIIN: 00-460-3398
In stock
NSN: 5331-00-460-3398
FSC Code: 5331
MPN: 6535111261118

5331-00-942-1772 (65351-11261-110)

NIIN: 00-942-1772
In stock
NSN: 5331-00-942-1772
FSC Code: 5331
MPN: 6535111261110

5331-00-942-1769 (65351-11261-113)

NIIN: 00-942-1769
In stock
NSN: 5331-00-942-1769
FSC Code: 5331
MPN: 6535111261113

5331-00-460-3401 (65351-11261-122)

NIIN: 00-460-3401
In stock
NSN: 5331-00-460-3401
FSC Code: 5331
MPN: 6535111261122

5331-00-180-9341 (65351-11261-123)

NIIN: 00-180-9341
In stock
NSN: 5331-00-180-9341
FSC Code: 5331
MPN: 6535111261123

5331-00-942-1768 (65351-11261-112)

NIIN: 00-942-1768
In stock
NSN: 5331-00-942-1768
FSC Code: 5331
MPN: 6535111261112

5331-00-224-2642 (65351-11261-108)

NIIN: 00-224-2642
In stock
NSN: 5331-00-224-2642
FSC Code: 5331
MPN: 6535111261108

5331-00-253-2762 (65351-11261-126)

NIIN: 00-253-2762
In stock
NSN: 5331-00-253-2762
FSC Code: 5331
MPN: 6535111261126

5331-00-460-3402 (65351-11261-107)

NIIN: 00-460-3402
In stock
NSN: 5331-00-460-3402
FSC Code: 5331
MPN: 6535111261107

5331-00-460-3399 (65351-11261-119)

NIIN: 00-460-3399
In stock
NSN: 5331-00-460-3399
FSC Code: 5331
MPN: 6535111261119

5331-00-461-1951 (65351-11261-120)

NIIN: 00-461-1951
In stock
NSN: 5331-00-461-1951
FSC Code: 5331
MPN: 6535111261120

5331-00-942-1773 (65351-11261-111)

NIIN: 00-942-1773
In stock
NSN: 5331-00-942-1773
FSC Code: 5331
MPN: 6535111261111

5331-00-942-1766 (65351-11261-105)

NIIN: 00-942-1766
In stock
NSN: 5331-00-942-1766
FSC Code: 5331
MPN: 6535111261105

5331-00-942-1759 (65351-11261-101)

NIIN: 00-942-1759
In stock
NSN: 5331-00-942-1759
FSC Code: 5331
MPN: 6535111261101

5331-00-942-1767 (65351-11261-103)

NIIN: 00-942-1767
In stock
NSN: 5331-00-942-1767
FSC Code: 5331
MPN: 6535111261103

5331-00-942-1789 (65351-11261-104)

NIIN: 00-942-1789
In stock
NSN: 5331-00-942-1789
FSC Code: 5331
MPN: 6535111261104

5331-00-842-8018 (6-52813-1)

NIIN: 00-842-8018
In stock
NSN: 5331-00-842-8018
FSC Code: 5331
MPN: 6528131

5331-01-213-6067 (65218.35.63)

NIIN: 01-213-6067
In stock
NSN: 5331-01-213-6067
FSC Code: 5331
MPN: 652183563

5331-01-385-5453 (27360-76)

NIIN: 01-385-5453
In stock
NSN: 5331-01-385-5453
FSC Code: 5331
MPN: 2736076

5331-00-106-3988 (6520-010-912)

NIIN: 00-106-3988
In stock
NSN: 5331-00-106-3988
FSC Code: 5331
MPN: 6520010912

5331-01-318-2275 (651L001)

NIIN: 01-318-2275
In stock
NSN: 5331-01-318-2275
FSC Code: 5331
MPN: 651L001

5331-00-141-7525 (6-51899)

NIIN: 00-141-7525
In stock
NSN: 5331-00-141-7525
FSC Code: 5331
MPN: 651899

5331-00-936-2988 (6-51899)

NIIN: 00-936-2988
In stock
NSN: 5331-00-936-2988
FSC Code: 5331
MPN: 651899

5331-01-130-7818 (651-7781-7)

NIIN: 01-130-7818
In stock
NSN: 5331-01-130-7818
FSC Code: 5331
MPN: 65177817

5331-01-392-6707 (27251-94)

NIIN: 01-392-6707
In stock
NSN: 5331-01-392-6707
FSC Code: 5331
MPN: 2725194

5331-01-540-5230 (27-228)

NIIN: 01-540-5230
In stock
NSN: 5331-01-540-5230
FSC Code: 5331
MPN: 27228

5331-01-284-6385 (65146-S-A993)

NIIN: 01-284-6385
In stock
NSN: 5331-01-284-6385
FSC Code: 5331
MPN: 65146SA993

5331-01-292-1158 (65135-G-993)

NIIN: 01-292-1158
In stock
NSN: 5331-01-292-1158
FSC Code: 5331
MPN: 65135G993

5331-01-119-8758 (65134-J)

NIIN: 01-119-8758
In stock
NSN: 5331-01-119-8758
FSC Code: 5331
MPN: 65134J

5331-01-292-0175 (65135-F-993)

NIIN: 01-292-0175
In stock
NSN: 5331-01-292-0175
FSC Code: 5331
MPN: 65135F993

5331-01-292-1165 (65135-H-993)

NIIN: 01-292-1165
In stock
NSN: 5331-01-292-1165
FSC Code: 5331
MPN: 65135H993

5331-01-292-9454 (65134-D-993)

NIIN: 01-292-9454
In stock
NSN: 5331-01-292-9454
FSC Code: 5331
MPN: 65134D993

5331-01-292-1162 (65134-F-993)

NIIN: 01-292-1162
In stock
NSN: 5331-01-292-1162
FSC Code: 5331
MPN: 65134F993

5331-01-292-1164 (65134-H-993)

NIIN: 01-292-1164
In stock
NSN: 5331-01-292-1164
FSC Code: 5331
MPN: 65134H993

5331-01-292-1159 (65134-B-993)

NIIN: 01-292-1159
In stock
NSN: 5331-01-292-1159
FSC Code: 5331
MPN: 65134B993

5331-00-054-5214 (651345-5)

NIIN: 00-054-5214
In stock
NSN: 5331-00-054-5214
FSC Code: 5331
MPN: 6513455