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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.

5331-01-431-5660 (E0NN-N475-BA)

NIIN: 01-431-5660
In stock
NSN: 5331-01-431-5660
FSC Code: 5331
MPN: E0NNN475BA

5331-01-527-9807 (E0603-70-20215)

NIIN: 01-527-9807
In stock
NSN: 5331-01-527-9807
FSC Code: 5331
MPN: E06037020215

5331-01-541-3839 (E0515-80-5-666)

NIIN: 01-541-3839
In stock
NSN: 5331-01-541-3839
FSC Code: 5331
MPN: E0515805666

5331-01-527-9805 (E0603-70-2-214)

NIIN: 01-527-9805
In stock
NSN: 5331-01-527-9805
FSC Code: 5331
MPN: E0603702214

5331-01-562-3531 (E0667-70)

NIIN: 01-562-3531
In stock
NSN: 5331-01-562-3531
FSC Code: 5331
MPN: E066770

5331-01-502-0820 (E0540-80-2-019)

NIIN: 01-502-0820
In stock
NSN: 5331-01-502-0820
FSC Code: 5331
MPN: E0540802019

5331-01-548-5133 (E-009)

NIIN: 01-548-5133
In stock
NSN: 5331-01-548-5133
FSC Code: 5331
MPN: E009

5331-00-061-8496 (T19094T)

NIIN: 00-061-8496
In stock
NSN: 5331-00-061-8496
FSC Code: 5331
MPN: T19094T

5331-01-356-6061 (E0121AE)

NIIN: 01-356-6061
In stock
NSN: 5331-01-356-6061
FSC Code: 5331
MPN: E0121AE

5331-01-561-6515 (L3MF-114861-002)

NIIN: 01-561-6515
In stock
NSN: 5331-01-561-6515
FSC Code: 5331
MPN: L3MF114861002

5331-01-561-6505 (E)

NIIN: 01-561-6505
In stock
NSN: 5331-01-561-6505
FSC Code: 5331
MPN: E

5331-01-195-4866 (T16752)

NIIN: 01-195-4866
In stock
NSN: 5331-01-195-4866
FSC Code: 5331
MPN: T16752

5331-01-565-1851 (DZ109700)

NIIN: 01-565-1851
In stock
NSN: 5331-01-565-1851
FSC Code: 5331
MPN: DZ109700

5331-01-075-0914 (T149175)

NIIN: 01-075-0914
In stock
NSN: 5331-01-075-0914
FSC Code: 5331
MPN: T149175

5331-01-107-6630 (T13119)

NIIN: 01-107-6630
In stock
NSN: 5331-01-107-6630
FSC Code: 5331
MPN: T13119

5331-00-650-8185 (T1-23-200-0473)

NIIN: 00-650-8185
In stock
NSN: 5331-00-650-8185
FSC Code: 5331
MPN: T1232000473

5331-01-312-3751 (T12275)

NIIN: 01-312-3751
In stock
NSN: 5331-01-312-3751
FSC Code: 5331
MPN: T12275

5331-01-469-2230 (DX62-1.0-000)

NIIN: 01-469-2230
In stock
NSN: 5331-01-469-2230
FSC Code: 5331
MPN: DX6210000

5331-01-063-5016 (T12-0002)

NIIN: 01-063-5016
In stock
NSN: 5331-01-063-5016
FSC Code: 5331
MPN: T120002

5331-01-203-0731 (T1172N)

NIIN: 01-203-0731
In stock
NSN: 5331-01-203-0731
FSC Code: 5331
MPN: T1172N

5331-01-571-7917 (DX-125638PC9)

NIIN: 01-571-7917
In stock
NSN: 5331-01-571-7917
FSC Code: 5331
MPN: DX125638PC9

5331-01-571-7921 (DX-125645PC9)

NIIN: 01-571-7921
In stock
NSN: 5331-01-571-7921
FSC Code: 5331
MPN: DX125645PC9

5331-01-312-7162 (T11220)

NIIN: 01-312-7162
In stock
NSN: 5331-01-312-7162
FSC Code: 5331
MPN: T11220

5331-01-330-9610 (T107748)

NIIN: 01-330-9610
In stock
NSN: 5331-01-330-9610
FSC Code: 5331
MPN: T107748

5331-01-333-2683 (T104710)

NIIN: 01-333-2683
In stock
NSN: 5331-01-333-2683
FSC Code: 5331
MPN: T104710

5331-01-329-7684 (T107885)

NIIN: 01-329-7684
In stock
NSN: 5331-01-329-7684
FSC Code: 5331
MPN: T107885

5331-01-182-5495 (T10-19310-40)

NIIN: 01-182-5495
In stock
NSN: 5331-01-182-5495
FSC Code: 5331
MPN: T101931040

5331-01-279-0489 (T101552)

NIIN: 01-279-0489
In stock
NSN: 5331-01-279-0489
FSC Code: 5331
MPN: T101552

5331-01-283-3550 (T101546)

NIIN: 01-283-3550
In stock
NSN: 5331-01-283-3550
FSC Code: 5331
MPN: T101546

5331-01-246-9400 (T-1000-10)

NIIN: 01-246-9400
In stock
NSN: 5331-01-246-9400
FSC Code: 5331
MPN: T100010

5331-00-524-8811 (T100036)

NIIN: 00-524-8811
In stock
NSN: 5331-00-524-8811
FSC Code: 5331
MPN: T100036

5331-01-307-4996 (T100167)

NIIN: 01-307-4996
In stock
NSN: 5331-01-307-4996
FSC Code: 5331
MPN: T100167

5331-00-080-9634 (T-1000-06)

NIIN: 00-080-9634
In stock
NSN: 5331-00-080-9634
FSC Code: 5331
MPN: T100006

5331-01-124-1108 (T061765)

NIIN: 01-124-1108
In stock
NSN: 5331-01-124-1108
FSC Code: 5331
MPN: T061765

5331-01-276-3233 (T063620)

NIIN: 01-276-3233
In stock
NSN: 5331-01-276-3233
FSC Code: 5331
MPN: T063620

5331-01-286-2494 (T064325)

NIIN: 01-286-2494
In stock
NSN: 5331-01-286-2494
FSC Code: 5331
MPN: T064325

5331-01-197-7518 (T0-45525)

NIIN: 01-197-7518
In stock
NSN: 5331-01-197-7518
FSC Code: 5331
MPN: T045525

5331-01-196-0190 (T0-45522)

NIIN: 01-196-0190
In stock
NSN: 5331-01-196-0190
FSC Code: 5331
MPN: T045522

5331-01-189-3642 (T0-45526)

NIIN: 01-189-3642
In stock
NSN: 5331-01-189-3642
FSC Code: 5331
MPN: T045526

5331-01-537-5941 (DV603B130)

NIIN: 01-537-5941
In stock
NSN: 5331-01-537-5941
FSC Code: 5331
MPN: DV603B130

5331-01-196-0189 (T0-40684)

NIIN: 01-196-0189
In stock
NSN: 5331-01-196-0189
FSC Code: 5331
MPN: T040684

5331-01-124-6402 (T023476)

NIIN: 01-124-6402
In stock
NSN: 5331-01-124-6402
FSC Code: 5331
MPN: T023476

5331-01-126-0821 (T023513)

NIIN: 01-126-0821
In stock
NSN: 5331-01-126-0821
FSC Code: 5331
MPN: T023513

5331-01-360-1085 (DV060020BRM011)

NIIN: 01-360-1085
In stock
NSN: 5331-01-360-1085
FSC Code: 5331
MPN: DV060020BRM011

5331-01-125-0827 (T023536)

NIIN: 01-125-0827
In stock
NSN: 5331-01-125-0827
FSC Code: 5331
MPN: T023536

5331-01-199-2118 (T019761)

NIIN: 01-199-2118
In stock
NSN: 5331-01-199-2118
FSC Code: 5331
MPN: T019761

5331-01-292-0154 (SZ-10525)

NIIN: 01-292-0154
In stock
NSN: 5331-01-292-0154
FSC Code: 5331
MPN: SZ10525

5331-01-134-3297 (SYLC-262-1)

NIIN: 01-134-3297
In stock
NSN: 5331-01-134-3297
FSC Code: 5331
MPN: SYLC2621