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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.

5331-01-088-2748 (821162-4)

NIIN: 01-088-2748
In stock
NSN: 5331-01-088-2748
FSC Code: 5331
MPN: 8211624

5331-01-088-3297 (821162-7)

NIIN: 01-088-3297
In stock
NSN: 5331-01-088-3297
FSC Code: 5331
MPN: 8211627

5331-00-163-9744 (821160-4)

NIIN: 00-163-9744
In stock
NSN: 5331-00-163-9744
FSC Code: 5331
MPN: 8211604

5331-00-618-9550 (8-21007)

NIIN: 00-618-9550
In stock
NSN: 5331-00-618-9550
FSC Code: 5331
MPN: 821007

5331-01-062-1000 (820A0031)

NIIN: 01-062-1000
In stock
NSN: 5331-01-062-1000
FSC Code: 5331
MPN: 820A0031

5331-00-892-2302 (820832PC4)

NIIN: 00-892-2302
In stock
NSN: 5331-00-892-2302
FSC Code: 5331
MPN: 820832PC4

5331-00-701-1881 (820708-1)

NIIN: 00-701-1881
In stock
NSN: 5331-00-701-1881
FSC Code: 5331
MPN: 8207081

5331-01-372-9307 (4102WSW-1.00IN)

NIIN: 01-372-9307
In stock
NSN: 5331-01-372-9307
FSC Code: 5331
MPN: 4102WSW100IN

5331-01-524-9736 (MIL-P-25732)

NIIN: 01-524-9736
In stock
NSN: 5331-01-524-9736
FSC Code: 5331
MPN: MILP25732

5331-01-542-0041 (410-13691(9452K123))

NIIN: 01-542-0041
In stock
NSN: 5331-01-542-0041
FSC Code: 5331
MPN: 410136919452K123

5331-01-498-7117 (4100-16)

NIIN: 01-498-7117
In stock
NSN: 5331-01-498-7117
FSC Code: 5331
MPN: 410016

5331-01-348-8330 (41)

NIIN: 01-348-8330
In stock
NSN: 5331-01-348-8330
FSC Code: 5331
MPN: 41

5331-12-304-3690 (700429040003)

NIIN: 12-304-3690
In stock
NSN: 5331-12-304-3690
FSC Code: 5331
MPN: 700429040003

5331-01-289-2640 (820-5787357-2)

NIIN: 01-289-2640
In stock
NSN: 5331-01-289-2640
FSC Code: 5331
MPN: 82057873572

5331-01-289-2639 (820-5787357-1)

NIIN: 01-289-2639
In stock
NSN: 5331-01-289-2639
FSC Code: 5331
MPN: 82057873571

5331-01-318-3297 (820-5786921-3)

NIIN: 01-318-3297
In stock
NSN: 5331-01-318-3297
FSC Code: 5331
MPN: 82057869213

5331-01-317-9969 (820-5786921-2)

NIIN: 01-317-9969
In stock
NSN: 5331-01-317-9969
FSC Code: 5331
MPN: 82057869212

5331-00-045-8483 (820-5348605-341)

NIIN: 00-045-8483
In stock
NSN: 5331-00-045-8483
FSC Code: 5331
MPN: 8205348605341

5331-00-058-1410 (820-4-80002-524)

NIIN: 00-058-1410
In stock
NSN: 5331-00-058-1410
FSC Code: 5331
MPN: 820480002524

5331-00-892-5010 (820-4-80002-527)

NIIN: 00-892-5010
In stock
NSN: 5331-00-892-5010
FSC Code: 5331
MPN: 820480002527

5331-00-058-1411 (820-4-80002-525)

NIIN: 00-058-1411
In stock
NSN: 5331-00-058-1411
FSC Code: 5331
MPN: 820480002525

5331-01-408-2016 (40ORVAP)

NIIN: 01-408-2016
In stock
NSN: 5331-01-408-2016
FSC Code: 5331
MPN: 40ORVAP

5331-01-408-2015 (40ORVAPST)

NIIN: 01-408-2015
In stock
NSN: 5331-01-408-2015
FSC Code: 5331
MPN: 40ORVAPST

5331-01-408-2018 (40ORVATP)

NIIN: 01-408-2018
In stock
NSN: 5331-01-408-2018
FSC Code: 5331
MPN: 40ORVATP

5331-01-295-4672 (820452-1)

NIIN: 01-295-4672
In stock
NSN: 5331-01-295-4672
FSC Code: 5331
MPN: 8204521

5331-01-024-2509 (820-4529950)

NIIN: 01-024-2509
In stock
NSN: 5331-01-024-2509
FSC Code: 5331
MPN: 8204529950

5331-00-058-1409 (820-4-50001-79)

NIIN: 00-058-1409
In stock
NSN: 5331-00-058-1409
FSC Code: 5331
MPN: 82045000179

5331-00-079-0076 (820-4445995-4)

NIIN: 00-079-0076
In stock
NSN: 5331-00-079-0076
FSC Code: 5331
MPN: 82044459954

5331-01-204-9063 (820-2178672-4)

NIIN: 01-204-9063
In stock
NSN: 5331-01-204-9063
FSC Code: 5331
MPN: 82021786724

5331-00-776-7031 (8202-14)

NIIN: 00-776-7031
In stock
NSN: 5331-00-776-7031
FSC Code: 5331
MPN: 820214

5331-00-951-1890 (8202-14)

NIIN: 00-951-1890
In stock
NSN: 5331-00-951-1890
FSC Code: 5331
MPN: 820214

5331-01-353-9392 (40A132488P1)

NIIN: 01-353-9392
In stock
NSN: 5331-01-353-9392
FSC Code: 5331
MPN: 40A132488P1

5331-01-250-3310 (8201-12)

NIIN: 01-250-3310
In stock
NSN: 5331-01-250-3310
FSC Code: 5331
MPN: 820112

5331-00-776-7026 (8201-12)

NIIN: 00-776-7026
In stock
NSN: 5331-00-776-7026
FSC Code: 5331
MPN: 820112

5331-00-432-4311 (82006007-002)

NIIN: 00-432-4311
In stock
NSN: 5331-00-432-4311
FSC Code: 5331
MPN: 82006007002

5331-01-330-9594 (82005578-005)

NIIN: 01-330-9594
In stock
NSN: 5331-01-330-9594
FSC Code: 5331
MPN: 82005578005

5331-00-480-3712 (82005520-005)

NIIN: 00-480-3712
In stock
NSN: 5331-00-480-3712
FSC Code: 5331
MPN: 82005520005

5331-00-500-2783 (82005529-005)

NIIN: 00-500-2783
In stock
NSN: 5331-00-500-2783
FSC Code: 5331
MPN: 82005529005

5331-00-004-3445 (82005513-005)

NIIN: 00-004-3445
In stock
NSN: 5331-00-004-3445
FSC Code: 5331
MPN: 82005513005

5331-01-330-7514 (82005017-040)

NIIN: 01-330-7514
In stock
NSN: 5331-01-330-7514
FSC Code: 5331
MPN: 82005017040

5331-01-330-9627 (82005021-040)

NIIN: 01-330-9627
In stock
NSN: 5331-01-330-9627
FSC Code: 5331
MPN: 82005021040

5331-01-330-8345 (82005016-040)

NIIN: 01-330-8345
In stock
NSN: 5331-01-330-8345
FSC Code: 5331
MPN: 82005016040

5331-00-392-0808 (8200-15)

NIIN: 00-392-0808
In stock
NSN: 5331-00-392-0808
FSC Code: 5331
MPN: 820015

5331-01-334-0370 (8200-13)

NIIN: 01-334-0370
In stock
NSN: 5331-01-334-0370
FSC Code: 5331
MPN: 820013

5331-00-202-1282 (8200-11)

NIIN: 00-202-1282
In stock
NSN: 5331-00-202-1282
FSC Code: 5331
MPN: 820011

5331-00-202-1283 (8200-10)

NIIN: 00-202-1283
In stock
NSN: 5331-00-202-1283
FSC Code: 5331
MPN: 820010

5331-01-013-5832 (8200-06)

NIIN: 01-013-5832
In stock
NSN: 5331-01-013-5832
FSC Code: 5331
MPN: 820006

5331-01-436-5697 (4093-301-4)

NIIN: 01-436-5697
In stock
NSN: 5331-01-436-5697
FSC Code: 5331
MPN: 40933014