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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.

5331-00-542-1383 (28-3779P)

NIIN: 00-542-1383
In stock
NSN: 5331-00-542-1383
FSC Code: 5331
MPN: 283779P

5331-99-105-6406 (MBEU18209ZZ)

NIIN: 99-105-6406
In stock
NSN: 5331-99-105-6406
FSC Code: 5331
MPN: MBEU18209ZZ

5331-01-088-6105 (2836126-2)

NIIN: 01-088-6105
In stock
NSN: 5331-01-088-6105
FSC Code: 5331
MPN: 28361262

5331-01-097-2778 (283467-0002)

NIIN: 01-097-2778
In stock
NSN: 5331-01-097-2778
FSC Code: 5331
MPN: 2834670002

5331-01-450-6650 (0M0C50140)

NIIN: 01-450-6650
In stock
NSN: 5331-01-450-6650
FSC Code: 5331
MPN: 0M0C50140

5331-01-299-8219 (28-33)

NIIN: 01-299-8219
In stock
NSN: 5331-01-299-8219
FSC Code: 5331
MPN: 2833

5331-01-184-5366 (28-3293P)

NIIN: 01-184-5366
In stock
NSN: 5331-01-184-5366
FSC Code: 5331
MPN: 283293P

5331-00-599-0827 (28-3247P)

NIIN: 00-599-0827
In stock
NSN: 5331-00-599-0827
FSC Code: 5331
MPN: 283247P

5331-00-730-8328 (28316K20)

NIIN: 00-730-8328
In stock
NSN: 5331-00-730-8328
FSC Code: 5331
MPN: 28316K20

5331-01-420-2947 (0G12)

NIIN: 01-420-2947
In stock
NSN: 5331-01-420-2947
FSC Code: 5331
MPN: 0G12

5331-01-466-4168 (201201-008)

NIIN: 01-466-4168
In stock
NSN: 5331-01-466-4168
FSC Code: 5331
MPN: 201201008

5331-99-771-4197 (FR.10/70)

NIIN: 99-771-4197
In stock
NSN: 5331-99-771-4197
FSC Code: 5331
MPN: FR1070

5331-01-394-6418 (0D31971P101)

NIIN: 01-394-6418
In stock
NSN: 5331-01-394-6418
FSC Code: 5331
MPN: 0D31971P101

5331-99-538-3181 (200-227-5590)

NIIN: 99-538-3181
In stock
NSN: 5331-99-538-3181
FSC Code: 5331
MPN: 2002275590

5331-99-821-3181 (SC-100004-112)

NIIN: 99-821-3181
In stock
NSN: 5331-99-821-3181
FSC Code: 5331
MPN: SC100004112

5331-99-528-0428 (H947-528-0428)

NIIN: 99-528-0428
In stock
NSN: 5331-99-528-0428
FSC Code: 5331
MPN: H9475280428

5331-99-112-9810 (BS1806-012)

NIIN: 99-112-9810
In stock
NSN: 5331-99-112-9810
FSC Code: 5331
MPN: BS1806012

5331-99-801-6628 (BS1806-113NBRM88)

NIIN: 99-801-6628
In stock
NSN: 5331-99-801-6628
FSC Code: 5331
MPN: BS1806113NBRM88

5331-01-292-4006 (2824-ND)

NIIN: 01-292-4006
In stock
NSN: 5331-01-292-4006
FSC Code: 5331
MPN: 2824ND

5331-99-920-0029 (0B-33044X)

NIIN: 99-920-0029
In stock
NSN: 5331-99-920-0029
FSC Code: 5331
MPN: 0B33044X

5331-01-273-6149 (2817-5803-01)

NIIN: 01-273-6149
In stock
NSN: 5331-01-273-6149
FSC Code: 5331
MPN: 2817580301

5331-01-278-5037 (2817-5725-06)

NIIN: 01-278-5037
In stock
NSN: 5331-01-278-5037
FSC Code: 5331
MPN: 2817572506

5331-01-278-5033 (2817-5725-02)

NIIN: 01-278-5033
In stock
NSN: 5331-01-278-5033
FSC Code: 5331
MPN: 2817572502

5331-01-278-5035 (2817-5725-01)

NIIN: 01-278-5035
In stock
NSN: 5331-01-278-5035
FSC Code: 5331
MPN: 2817572501

5331-01-278-5036 (2817-5725-03)

NIIN: 01-278-5036
In stock
NSN: 5331-01-278-5036
FSC Code: 5331
MPN: 2817572503

5331-01-062-4466 (281712-0001)

NIIN: 01-062-4466
In stock
NSN: 5331-01-062-4466
FSC Code: 5331
MPN: 2817120001

5331-00-078-7300 (2817-00)

NIIN: 00-078-7300
In stock
NSN: 5331-00-078-7300
FSC Code: 5331
MPN: 281700

5331-01-297-1095 (281643-0002)

NIIN: 01-297-1095
In stock
NSN: 5331-01-297-1095
FSC Code: 5331
MPN: 2816430002

5331-00-835-6112 (281684-0108ITEM)

NIIN: 00-835-6112
In stock
NSN: 5331-00-835-6112
FSC Code: 5331
MPN: 2816840108ITEM

5331-01-122-0831 (281497-0001)

NIIN: 01-122-0831
In stock
NSN: 5331-01-122-0831
FSC Code: 5331
MPN: 2814970001

5331-01-122-0830 (281497-0001)

NIIN: 01-122-0830
In stock
NSN: 5331-01-122-0830
FSC Code: 5331
MPN: 2814970001

5331-12-325-5363 (OR1500900-N80)

NIIN: 12-325-5363
In stock
NSN: 5331-12-325-5363
FSC Code: 5331
MPN: OR1500900N80

5331-01-130-9803 (281325-0001)

NIIN: 01-130-9803
In stock
NSN: 5331-01-130-9803
FSC Code: 5331
MPN: 2813250001

5331-01-130-9805 (281325-0001)

NIIN: 01-130-9805
In stock
NSN: 5331-01-130-9805
FSC Code: 5331
MPN: 2813250001

5331-01-115-7850 (281325-0001)

NIIN: 01-115-7850
In stock
NSN: 5331-01-115-7850
FSC Code: 5331
MPN: 2813250001

5331-01-396-8001 (PTB864-500-250)

NIIN: 01-396-8001
In stock
NSN: 5331-01-396-8001
FSC Code: 5331
MPN: PTB864500250

5331-01-358-0602 (PTB864-400-250)

NIIN: 01-358-0602
In stock
NSN: 5331-01-358-0602
FSC Code: 5331
MPN: PTB864400250

5331-01-299-8218 (28-117A)

NIIN: 01-299-8218
In stock
NSN: 5331-01-299-8218
FSC Code: 5331
MPN: 28117A

5331-01-130-2106 (28115-2)

NIIN: 01-130-2106
In stock
NSN: 5331-01-130-2106
FSC Code: 5331
MPN: 281152

5331-00-599-2608 (2810L19-018)

NIIN: 00-599-2608
In stock
NSN: 5331-00-599-2608
FSC Code: 5331
MPN: 2810L19018

5331-00-326-0331 (2810H37-001)

NIIN: 00-326-0331
In stock
NSN: 5331-00-326-0331
FSC Code: 5331
MPN: 2810H37001

5331-01-022-9020 (281088PC67)

NIIN: 01-022-9020
In stock
NSN: 5331-01-022-9020
FSC Code: 5331
MPN: 281088PC67

5331-01-021-1047 (281088PC64)

NIIN: 01-021-1047
In stock
NSN: 5331-01-021-1047
FSC Code: 5331
MPN: 281088PC64

5331-01-534-9126 (099-8232)

NIIN: 01-534-9126
In stock
NSN: 5331-01-534-9126
FSC Code: 5331
MPN: 0998232

5331-01-463-5192 (099-08-00-0018-A020)

NIIN: 01-463-5192
In stock
NSN: 5331-01-463-5192
FSC Code: 5331
MPN: 09908000018A020

5331-01-464-0196 (099-08-0039-A020)

NIIN: 01-464-0196
In stock
NSN: 5331-01-464-0196
FSC Code: 5331
MPN: 099080039A020

5331-01-464-0198 (099-08-00-0041-A020)

NIIN: 01-464-0198
In stock
NSN: 5331-01-464-0198
FSC Code: 5331
MPN: 09908000041A020

5331-01-430-7156 (099-00208-03)

NIIN: 01-430-7156
In stock
NSN: 5331-01-430-7156
FSC Code: 5331
MPN: 0990020803