Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-727-6023 (5-256 NBR)

NIIN: 01-727-6023
In stock
NSN: 5331-01-727-6023
FSC Code: 5331
MPN: 5256NBR

5331-01-727-5366 (00107352)

NIIN: 01-727-5366
In stock
NSN: 5331-01-727-5366
FSC Code: 5331
MPN: 00107352

5331-01-728-6170 (73160-228)

NIIN: 01-728-6170
In stock
NSN: 5331-01-728-6170
FSC Code: 5331
MPN: 73160228

5331-01-728-5899 (VM835-75 2-022)

NIIN: 01-728-5899
In stock
NSN: 5331-01-728-5899
FSC Code: 5331
MPN: VM835752022

5331-01-728-5813 (803-1385714-82AF-34)

NIIN: 01-728-5813
In stock
NSN: 5331-01-728-5813
FSC Code: 5331
MPN: 803138571482AF34

5331-01-728-5782 (3638712)

NIIN: 01-728-5782
In stock
NSN: 5331-01-728-5782
FSC Code: 5331
MPN: 3638712

5331-01-727-8963 (286229-020)

NIIN: 01-727-8963
In stock
NSN: 5331-01-727-8963
FSC Code: 5331
MPN: 286229020

5331-01-727-7606 (AQM-27)

NIIN: 01-727-7606
In stock
NSN: 5331-01-727-7606
FSC Code: 5331
MPN: AQM27

5331-01-727-7248 (SP-3114-018)

NIIN: 01-727-7248
In stock
NSN: 5331-01-727-7248
FSC Code: 5331
MPN: SP3114018

5331-01-727-7072 (SP-3114-040)

NIIN: 01-727-7072
In stock
NSN: 5331-01-727-7072
FSC Code: 5331
MPN: SP3114040

5331-01-727-6791 (6V-3549)

NIIN: 01-727-6791
In stock
NSN: 5331-01-727-6791
FSC Code: 5331
MPN: 6V3549

5331-01-727-5984 (2507294-91)

NIIN: 01-727-5984
In stock
NSN: 5331-01-727-5984
FSC Code: 5331
MPN: 250729491

5331-01-727-4895 (0470000300)

NIIN: 01-727-4895
In stock
NSN: 5331-01-727-4895
FSC Code: 5331
MPN: 0470000300

5331-01-728-6769 (515-052-426)

NIIN: 01-728-6769
In stock
NSN: 5331-01-728-6769
FSC Code: 5331
MPN: 515052426

5331-01-728-5231 (95023388)

NIIN: 01-728-5231
In stock
NSN: 5331-01-728-5231
FSC Code: 5331
MPN: 95023388

5331-01-727-9091 (4-6 64456)

NIIN: 01-727-9091
In stock
NSN: 5331-01-727-9091
FSC Code: 5331
MPN: 4664456

5331-01-727-8965 (286661-1)

NIIN: 01-727-8965
In stock
NSN: 5331-01-727-8965
FSC Code: 5331
MPN: 2866611

5331-01-727-7829 (SK-535310-BB)

NIIN: 01-727-7829
In stock
NSN: 5331-01-727-7829
FSC Code: 5331
MPN: SK535310BB

5331-01-727-4310 (238-5068)

NIIN: 01-727-4310
In stock
NSN: 5331-01-727-4310
FSC Code: 5331
MPN: 2385068

5331-01-727-4297 (900579)

NIIN: 01-727-4297
In stock
NSN: 5331-01-727-4297
FSC Code: 5331
MPN: 900579

5331-01-728-7162 (500-002-014)

NIIN: 01-728-7162
In stock
NSN: 5331-01-728-7162
FSC Code: 5331
MPN: 500002014

5331-01-728-7089 (D014S595)

NIIN: 01-728-7089
In stock
NSN: 5331-01-728-7089
FSC Code: 5331
MPN: D014S595

5331-01-728-6892 (O-RING, -214)

NIIN: 01-728-6892
In stock
NSN: 5331-01-728-6892
FSC Code: 5331
MPN: ORING214

5331-01-728-6749 (500-101-116)

NIIN: 01-728-6749
In stock
NSN: 5331-01-728-6749
FSC Code: 5331
MPN: 500101116

5331-01-728-2793 (9604)

NIIN: 01-728-2793
In stock
NSN: 5331-01-728-2793
FSC Code: 5331
MPN: 9604

5331-01-728-2605 (5128010)

NIIN: 01-728-2605
In stock
NSN: 5331-01-728-2605
FSC Code: 5331
MPN: 5128010

5331-01-728-0029 (95060018)

NIIN: 01-728-0029
In stock
NSN: 5331-01-728-0029
FSC Code: 5331
MPN: 95060018

5331-01-728-0044 (95999496)

NIIN: 01-728-0044
In stock
NSN: 5331-01-728-0044
FSC Code: 5331
MPN: 95999496

5331-01-727-5401 (8635042-23)

NIIN: 01-727-5401
In stock
NSN: 5331-01-727-5401
FSC Code: 5331
MPN: 863504223

5331-01-728-7155 (500-052-426)

NIIN: 01-728-7155
In stock
NSN: 5331-01-728-7155
FSC Code: 5331
MPN: 500052426

5331-01-728-1810 (M99001066)

NIIN: 01-728-1810
In stock
NSN: 5331-01-728-1810
FSC Code: 5331
MPN: M99001066

5331-01-728-1552 (100717)

NIIN: 01-728-1552
In stock
NSN: 5331-01-728-1552
FSC Code: 5331
MPN: 100717

5331-01-727-8967 (286229-028)

NIIN: 01-727-8967
In stock
NSN: 5331-01-727-8967
FSC Code: 5331
MPN: 286229028

5331-01-727-7058 (SP-3114-171)

NIIN: 01-727-7058
In stock
NSN: 5331-01-727-7058
FSC Code: 5331
MPN: SP3114171

5331-01-727-6877 (033-6027)

NIIN: 01-727-6877
In stock
NSN: 5331-01-727-6877
FSC Code: 5331
MPN: 0336027

5331-01-727-4742 (S12766-113)

NIIN: 01-727-4742
In stock
NSN: 5331-01-727-4742
FSC Code: 5331
MPN: S12766113

5331-01-728-6293 (01-402-0220)

NIIN: 01-728-6293
In stock
NSN: 5331-01-728-6293
FSC Code: 5331
MPN: 014020220

5331-01-728-5922 (VM835-75 2-010)

NIIN: 01-728-5922
In stock
NSN: 5331-01-728-5922
FSC Code: 5331
MPN: VM835752010

5331-01-728-5751 (803-1385714-71AF-33)

NIIN: 01-728-5751
In stock
NSN: 5331-01-728-5751
FSC Code: 5331
MPN: 803138571471AF33

5331-01-727-8929 (CB90347-501)

NIIN: 01-727-8929
In stock
NSN: 5331-01-727-8929
FSC Code: 5331
MPN: CB90347501

5331-01-727-6483 (544447)

NIIN: 01-727-6483
In stock
NSN: 5331-01-727-6483
FSC Code: 5331
MPN: 544447

5331-01-727-3657 (112886)

NIIN: 01-727-3657
In stock
NSN: 5331-01-727-3657
FSC Code: 5331
MPN: 112886

5331-01-728-4825 (M22050-2-468)

NIIN: 01-728-4825
In stock
NSN: 5331-01-728-4825
FSC Code: 5331
MPN: M220502468

5331-01-728-2656 (0860070004)

NIIN: 01-728-2656
In stock
NSN: 5331-01-728-2656
FSC Code: 5331
MPN: 0860070004

5331-01-727-9960 (13578N18-456C(MOD))

NIIN: 01-727-9960
In stock
NSN: 5331-01-727-9960
FSC Code: 5331
MPN: 13578N18456CMOD

5331-01-727-8397 (2-218)

NIIN: 01-727-8397
In stock
NSN: 5331-01-727-8397
FSC Code: 5331
MPN: 2218

5331-01-727-7574 (027 BUNA)

NIIN: 01-727-7574
In stock
NSN: 5331-01-727-7574
FSC Code: 5331
MPN: 027BUNA

5331-01-727-7090 (SP-3114-172)

NIIN: 01-727-7090
In stock
NSN: 5331-01-727-7090
FSC Code: 5331
MPN: SP3114172