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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.

5331-01-606-4034 (218429)

NIIN: 01-606-4034
In stock
NSN: 5331-01-606-4034
FSC Code: 5331
MPN: 218429

5331-01-606-3053 (652475368)

NIIN: 01-606-3053
In stock
NSN: 5331-01-606-3053
FSC Code: 5331
MPN: 652475368

5331-01-606-2431 (0041-1092BAC)

NIIN: 01-606-2431
In stock
NSN: 5331-01-606-2431
FSC Code: 5331
MPN: 00411092BAC

5331-01-606-0761 (1000-0010-015)

NIIN: 01-606-0761
In stock
NSN: 5331-01-606-0761
FSC Code: 5331
MPN: 10000010015

5331-01-606-8544 (J515CH220X0133H)

NIIN: 01-606-8544
In stock
NSN: 5331-01-606-8544
FSC Code: 5331
MPN: J515CH220X0133H

5331-01-606-8486 (65222.35.68)

NIIN: 01-606-8486
In stock
NSN: 5331-01-606-8486
FSC Code: 5331
MPN: 652223568

5331-01-606-8488 (14000157)

NIIN: 01-606-8488
In stock
NSN: 5331-01-606-8488
FSC Code: 5331
MPN: 14000157

5331-01-606-5887 (0010012255)

NIIN: 01-606-5887
In stock
NSN: 5331-01-606-5887
FSC Code: 5331
MPN: 0010012255

5331-01-606-3028 (B8744 REV G ITEM 1CP)

NIIN: 01-606-3028
In stock
NSN: 5331-01-606-3028
FSC Code: 5331
MPN: B8744REVGITEM1CP

5331-01-606-1404 (5256-135)

NIIN: 01-606-1404
In stock
NSN: 5331-01-606-1404
FSC Code: 5331
MPN: 5256135

5331-01-606-0804 (M83248/2-042)

NIIN: 01-606-0804
In stock
NSN: 5331-01-606-0804
FSC Code: 5331
MPN: M832482042

5331-01-605-9407 (696000009)

NIIN: 01-605-9407
In stock
NSN: 5331-01-605-9407
FSC Code: 5331
MPN: 696000009

5331-01-606-7567 (710-019-SIL)

NIIN: 01-606-7567
In stock
NSN: 5331-01-606-7567
FSC Code: 5331
MPN: 710019SIL

5331-01-606-7122 (845-7504734-01-X-89)

NIIN: 01-606-7122
In stock
NSN: 5331-01-606-7122
FSC Code: 5331
MPN: 845750473401X89

5331-01-606-5869 (19169305)

NIIN: 01-606-5869
In stock
NSN: 5331-01-606-5869
FSC Code: 5331
MPN: 19169305

5331-01-606-4899 (710-017-SIL)

NIIN: 01-606-4899
In stock
NSN: 5331-01-606-4899
FSC Code: 5331
MPN: 710017SIL

5331-01-606-4182 (609000006)

NIIN: 01-606-4182
In stock
NSN: 5331-01-606-4182
FSC Code: 5331
MPN: 609000006

5331-01-606-4139 (1218-63)

NIIN: 01-606-4139
In stock
NSN: 5331-01-606-4139
FSC Code: 5331
MPN: 121863

5331-01-606-4089 (45Z91D42)

NIIN: 01-606-4089
In stock
NSN: 5331-01-606-4089
FSC Code: 5331
MPN: 45Z91D42

5331-01-606-3349 (652092668)

NIIN: 01-606-3349
In stock
NSN: 5331-01-606-3349
FSC Code: 5331
MPN: 652092668

5331-01-606-3211 (215465)

NIIN: 01-606-3211
In stock
NSN: 5331-01-606-3211
FSC Code: 5331
MPN: 215465

5331-01-606-2415 (332115)

NIIN: 01-606-2415
In stock
NSN: 5331-01-606-2415
FSC Code: 5331
MPN: 332115

5331-01-606-0638 (828/10264)

NIIN: 01-606-0638
In stock
NSN: 5331-01-606-0638
FSC Code: 5331
MPN: 82810264

5331-01-605-9145 (675-0326-B46)

NIIN: 01-605-9145
In stock
NSN: 5331-01-605-9145
FSC Code: 5331
MPN: 6750326B46

5331-01-606-7407 (710-029-SIL)

NIIN: 01-606-7407
In stock
NSN: 5331-01-606-7407
FSC Code: 5331
MPN: 710029SIL

5331-01-606-5203 (845-7526218-11XX-22)

NIIN: 01-606-5203
In stock
NSN: 5331-01-606-5203
FSC Code: 5331
MPN: 845752621811XX22

5331-01-606-4183 (609000003)

NIIN: 01-606-4183
In stock
NSN: 5331-01-606-4183
FSC Code: 5331
MPN: 609000003

5331-01-606-0055 (157243)

NIIN: 01-606-0055
In stock
NSN: 5331-01-606-0055
FSC Code: 5331
MPN: 157243

5331-01-605-9543 (037801)

NIIN: 01-605-9543
In stock
NSN: 5331-01-605-9543
FSC Code: 5331
MPN: 037801

5331-01-606-6487 (25166292)

NIIN: 01-606-6487
In stock
NSN: 5331-01-606-6487
FSC Code: 5331
MPN: 25166292

5331-01-606-6299 (QD1004-125)

NIIN: 01-606-6299
In stock
NSN: 5331-01-606-6299
FSC Code: 5331
MPN: QD1004125

5331-01-606-5991 (9464K516)

NIIN: 01-606-5991
In stock
NSN: 5331-01-606-5991
FSC Code: 5331
MPN: 9464K516

5331-01-606-1634 (10673118-207)

NIIN: 01-606-1634
In stock
NSN: 5331-01-606-1634
FSC Code: 5331
MPN: 10673118207

5331-01-606-1026 (19-00-13063-6307)

NIIN: 01-606-1026
In stock
NSN: 5331-01-606-1026
FSC Code: 5331
MPN: 1900130636307

5331-01-606-7809 (0402.151)

NIIN: 01-606-7809
In stock
NSN: 5331-01-606-7809
FSC Code: 5331
MPN: 0402151

5331-01-606-7120 (845-7504734-01-X-90)

NIIN: 01-606-7120
In stock
NSN: 5331-01-606-7120
FSC Code: 5331
MPN: 845750473401X90

5331-01-606-4819 (F2VY 7Z136 A)

NIIN: 01-606-4819
In stock
NSN: 5331-01-606-4819
FSC Code: 5331
MPN: F2VY7Z136A

5331-01-606-4131 (1218-103)

NIIN: 01-606-4131
In stock
NSN: 5331-01-606-4131
FSC Code: 5331
MPN: 1218103

5331-01-606-3944 (28-0256)

NIIN: 01-606-3944
In stock
NSN: 5331-01-606-3944
FSC Code: 5331
MPN: 280256

5331-01-606-3350 (653151363)

NIIN: 01-606-3350
In stock
NSN: 5331-01-606-3350
FSC Code: 5331
MPN: 653151363

5331-01-606-3045 (A9550 REV B ITEM 1CP)

NIIN: 01-606-3045
In stock
NSN: 5331-01-606-3045
FSC Code: 5331
MPN: A9550REVBITEM1CP

5331-01-606-2863 (W8006730)

NIIN: 01-606-2863
In stock
NSN: 5331-01-606-2863
FSC Code: 5331
MPN: W8006730

5331-01-605-9088 (NAS1611-230A)

NIIN: 01-605-9088
In stock
NSN: 5331-01-605-9088
FSC Code: 5331
MPN: NAS1611230A

5331-01-606-5308 (841201)

NIIN: 01-606-5308
In stock
NSN: 5331-01-606-5308
FSC Code: 5331
MPN: 841201

5331-01-606-4857 (2-046N674)

NIIN: 01-606-4857
In stock
NSN: 5331-01-606-4857
FSC Code: 5331
MPN: 2046N674

5331-01-606-4898 (710-021-SIL)

NIIN: 01-606-4898
In stock
NSN: 5331-01-606-4898
FSC Code: 5331
MPN: 710021SIL

5331-01-606-4186 (608000005)

NIIN: 01-606-4186
In stock
NSN: 5331-01-606-4186
FSC Code: 5331
MPN: 608000005

5331-01-606-4004 (M25988/3-211)

NIIN: 01-606-4004
In stock
NSN: 5331-01-606-4004
FSC Code: 5331
MPN: M259883211