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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.

5331-01-381-6589 (1000-0060-28CP)

NIIN: 01-381-6589
In stock
NSN: 5331-01-381-6589
FSC Code: 5331
MPN: 1000006028CP

5331-01-486-8758 (1000-0060-26)

NIIN: 01-486-8758
In stock
NSN: 5331-01-486-8758
FSC Code: 5331
MPN: 1000006026

5331-01-418-5885 (1000-0030-914)

NIIN: 01-418-5885
In stock
NSN: 5331-01-418-5885
FSC Code: 5331
MPN: 10000030914

5331-01-418-5887 (1000-0030-15)

NIIN: 01-418-5887
In stock
NSN: 5331-01-418-5887
FSC Code: 5331
MPN: 1000003015

5331-01-467-4428 (10-00-0032-1224)

NIIN: 01-467-4428
In stock
NSN: 5331-01-467-4428
FSC Code: 5331
MPN: 100000321224

5331-01-466-5280 (1000-0004-906)

NIIN: 01-466-5280
In stock
NSN: 5331-01-466-5280
FSC Code: 5331
MPN: 10000004906

5331-01-541-3172 (1000-0004-037)

NIIN: 01-541-3172
In stock
NSN: 5331-01-541-3172
FSC Code: 5331
MPN: 10000004037

5331-01-466-5281 (1000-0004-905)

NIIN: 01-466-5281
In stock
NSN: 5331-01-466-5281
FSC Code: 5331
MPN: 10000004905

5331-01-544-8599 (10/907335)

NIIN: 01-544-8599
In stock
NSN: 5331-01-544-8599
FSC Code: 5331
MPN: 10907335

5331-01-433-0515 (10.1X1.6NBR70)

NIIN: 01-433-0515
In stock
NSN: 5331-01-433-0515
FSC Code: 5331
MPN: 101X16NBR70

5331-01-363-7543 (10.45.103E981-50)

NIIN: 01-363-7543
In stock
NSN: 5331-01-363-7543
FSC Code: 5331
MPN: 1045103E98150

5331-01-478-3346 (OR278.99X2.62MM-80EP)

NIIN: 01-478-3346
In stock
NSN: 5331-01-478-3346
FSC Code: 5331
MPN: OR27899X262MM80EP

5331-01-421-2892 (10.82X1.78P90)

NIIN: 01-421-2892
In stock
NSN: 5331-01-421-2892
FSC Code: 5331
MPN: 1082X178P90

5331-01-145-1202 (2939150-1)

NIIN: 01-145-1202
In stock
NSN: 5331-01-145-1202
FSC Code: 5331
MPN: 29391501

5331-00-851-2187 (2938-4)

NIIN: 00-851-2187
In stock
NSN: 5331-00-851-2187
FSC Code: 5331
MPN: 29384

5331-00-006-4902 (2938-152)

NIIN: 00-006-4902
In stock
NSN: 5331-00-006-4902
FSC Code: 5331
MPN: 2938152

5331-00-851-2186 (2938-3)

NIIN: 00-851-2186
In stock
NSN: 5331-00-851-2186
FSC Code: 5331
MPN: 29383

5331-01-289-1809 (2938-18)

NIIN: 01-289-1809
In stock
NSN: 5331-01-289-1809
FSC Code: 5331
MPN: 293818

5331-01-420-1631 (1/4-HL-31-SW)

NIIN: 01-420-1631
In stock
NSN: 5331-01-420-1631
FSC Code: 5331
MPN: 14HL31SW

5331-01-277-7214 (29361-021)

NIIN: 01-277-7214
In stock
NSN: 5331-01-277-7214
FSC Code: 5331
MPN: 29361021

5331-01-439-5307 (1/2IN)

NIIN: 01-439-5307
In stock
NSN: 5331-01-439-5307
FSC Code: 5331
MPN: 12IN

5331-01-464-2476 (1.732X.118)

NIIN: 01-464-2476
In stock
NSN: 5331-01-464-2476
FSC Code: 5331
MPN: 1732X118

5331-01-371-2045 (PL-E14969)

NIIN: 01-371-2045
In stock
NSN: 5331-01-371-2045
FSC Code: 5331
MPN: PLE14969

5331-01-371-2046 (HM0000178-N766A)

NIIN: 01-371-2046
In stock
NSN: 5331-01-371-2046
FSC Code: 5331
MPN: HM0000178N766A

5331-01-348-4818 (1.7657-315)

NIIN: 01-348-4818
In stock
NSN: 5331-01-348-4818
FSC Code: 5331
MPN: 17657315

5331-01-348-4817 (1.7657-453)

NIIN: 01-348-4817
In stock
NSN: 5331-01-348-4817
FSC Code: 5331
MPN: 17657453

5331-01-348-4820 (1.7657-406)

NIIN: 01-348-4820
In stock
NSN: 5331-01-348-4820
FSC Code: 5331
MPN: 17657406

5331-01-348-4819 (1.7657-319)

NIIN: 01-348-4819
In stock
NSN: 5331-01-348-4819
FSC Code: 5331
MPN: 17657319

5331-01-464-2485 (1.614X.118)

NIIN: 01-464-2485
In stock
NSN: 5331-01-464-2485
FSC Code: 5331
MPN: 1614X118

5331-01-481-5878 (1.670X0.047)

NIIN: 01-481-5878
In stock
NSN: 5331-01-481-5878
FSC Code: 5331
MPN: 1670X0047

5331-01-553-4119 (1.670ID)

NIIN: 01-553-4119
In stock
NSN: 5331-01-553-4119
FSC Code: 5331
MPN: 1670ID

5331-01-481-7681 (1.450I.D.X.047C.S-70EP)

NIIN: 01-481-7681
In stock
NSN: 5331-01-481-7681
FSC Code: 5331
MPN: 1450IDX047CS70EP

5331-00-647-0899 (2930-70)

NIIN: 00-647-0899
In stock
NSN: 5331-00-647-0899
FSC Code: 5331
MPN: 293070

5331-01-503-6256 (SH1.400.020.950)

NIIN: 01-503-6256
In stock
NSN: 5331-01-503-6256
FSC Code: 5331
MPN: SH1400020950

5331-15-147-1091 (1.300.20.00-4)

NIIN: 15-147-1091
In stock
NSN: 5331-15-147-1091
FSC Code: 5331
MPN: 130020004

5331-01-348-0445 (1.2215-2)

NIIN: 01-348-0445
In stock
NSN: 5331-01-348-0445
FSC Code: 5331
MPN: 122152

5331-00-736-0288 (2930-70)

NIIN: 00-736-0288
In stock
NSN: 5331-00-736-0288
FSC Code: 5331
MPN: 293070

5331-01-502-4562 (1.268X0.070-70BN)

NIIN: 01-502-4562
In stock
NSN: 5331-01-502-4562
FSC Code: 5331
MPN: 1268X007070BN

5331-00-853-2237 (2930-70)

NIIN: 00-853-2237
In stock
NSN: 5331-00-853-2237
FSC Code: 5331
MPN: 293070

5331-01-421-3506 (1.181X.079)

NIIN: 01-421-3506
In stock
NSN: 5331-01-421-3506
FSC Code: 5331
MPN: 1181X079

5331-01-360-5480 (1.004X)

NIIN: 01-360-5480
In stock
NSN: 5331-01-360-5480
FSC Code: 5331
MPN: 1004X

5331-00-065-4929 (292965R1)

NIIN: 00-065-4929
In stock
NSN: 5331-00-065-4929
FSC Code: 5331
MPN: 292965R1

5331-01-082-6172 (292900-100)

NIIN: 01-082-6172
In stock
NSN: 5331-01-082-6172
FSC Code: 5331
MPN: 292900100

5331-01-512-7336 (0T65231.53.68)

NIIN: 01-512-7336
In stock
NSN: 5331-01-512-7336
FSC Code: 5331
MPN: 0T652315368

5331-01-512-7321 (0T65227.35.68)

NIIN: 01-512-7321
In stock
NSN: 5331-01-512-7321
FSC Code: 5331
MPN: 0T652273568

5331-01-512-7316 (0T65238.53.68)

NIIN: 01-512-7316
In stock
NSN: 5331-01-512-7316
FSC Code: 5331
MPN: 0T652385368

5331-01-387-5344 (0T65213.26.68)

NIIN: 01-387-5344
In stock
NSN: 5331-01-387-5344
FSC Code: 5331
MPN: 0T652132668

5331-99-806-9456 (BS1806-341)

NIIN: 99-806-9456
In stock
NSN: 5331-99-806-9456
FSC Code: 5331
MPN: BS1806341