O-Ring - Norway (NO)
Federal Supply Class (FSC): 5331
NATO Supply Classification Class (NSC): 5331
Federal Supply Group (FSG): 53 Hardware and Abrasives
NATO Supply Classification Group (NSG): 53 Hardware and Abrasives
Items Managed by Norway (NO) - NCB is 25
Page 2 of 2
NSN Format for O-Ring
Codified by Norway
| 53 | 31 | 25 | XXX | XXXX | |||
|---|---|---|---|---|---|---|---|
| Group FSG | Class | NCB | Identifier | ||||
| FSC Federal Supply Class | NIIN | ||||||
| NSN | |||||||
NATO Supply Class 5331 refers to O-Rings, which are a type of sealing device used in various industries and applications. O-Rings are circular elastomeric rings with a round cross-section, typically made from materials such as rubber or silicone. They are designed to create a tight seal between two mating surfaces, preventing leakage of fluids or gases.
In the NATO Supply Group 53, which encompasses Hardware And Abrasives, O-Rings fall under the specific class of 5331. This class is dedicated to the categorization and identification of O-Rings within the NATO supply system.
O-Rings are widely used in a variety of industries, including automotive, aerospace, plumbing, and manufacturing. They are known for their versatility, durability, and ability to withstand high pressures and temperatures. O-Rings are commonly used in hydraulic and pneumatic systems, engines, pumps, valves, and other mechanical applications.
The NATO Supply Class 5331 for O-Rings ensures standardized identification and classification of these essential sealing devices within the NATO supply chain. This classification system helps streamline procurement processes and ensures compatibility and interchangeability of O-Rings across different NATO member countries.
If you need further information or assistance regarding O-Rings or any other topic, feel free to ask!

Excludes Packing and Gasket Material (FSC 5330).
Frequently Asked Questions(FAQ) for Federal Supply Class 5331
- What is Federal Supply Class 5331?
- FSC 5331 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 5331) in the USA for supply items codified in the category of O-Ring.
- What is NATO Supply Classification Class 5331?
- NSC 5331 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5331 in the USA) for supply items codified in the category of O-Ring.
- Which Federal Supply Group is FSC 5331 in?
- FSC 5331 is in Federal Supply Group (FSG) 53 which contains Hardware and Abrasives.
- Which NATO Supply Classification Group is NSC 5331 in?
- NSC 5331 is in NATO Supply Classification Group (NSG) 53 which contains Hardware and Abrasives.
Supply Items Included in Federal Supply Class 5331
- What is an O-Ring? 599 Items
- An O-Ring is a nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see PACKING,PREFORMED. For noncircular items with a round cross-section, see SEAL,NONMETALLIC ROUND SECTION and RUBBER,ROUND SECTION.
Stock Items From Supply Class 5331 Page 2 of 2
- 251526315
- SP-6335-40
- RNCC: 3 | RNVC: 2
- 251517923
- 80100
- RNCC: 3 | RNVC: 2
- 251502220
- 10260
- RNCC: 3 | RNVC: 2
- W211/16-45
- RNCC: 3 | RNVC: 2
- W411/14-45
- RNCC: 6 | RNVC: 9
- 251502642
- 8.00 X 2.00 SHORE 70
- RNCC: 3 | RNVC: 2
- 251612436
- 540-075410
- RNCC: 3 | RNVC: 2
- 251493203
- 3831691-5
- RNCC: 3 | RNVC: 2
- 251501001
- 08011
- RNCC: 3 | RNVC: 2
- 251266504
- 10403318
- RNCC: 3 | RNVC: 2
- N9-8-21X25
- RNCC: 5 | RNVC: 2
- 251608509
- 706417
- RNCC: 3 | RNVC: 2
- 251608306
- 90814
- RNCC: 3 | RNVC: 2
- 251502992
- W293/28 ITEM 76
- RNCC: 3 | RNVC: 2
- 251493202
- 3831690-7
- RNCC: 3 | RNVC: 2
- 251501002
- 13717
- RNCC: 3 | RNVC: 2
- 251491777
- 742121566PC30
- RNCC: 3 | RNVC: 2
- 21587
- RNCC: 5 | RNVC: 2
- 251508660
- A38454
- RNCC: 3 | RNVC: 2
- 251601517
- A7399
- RNCC: 3 | RNVC: 2
- 251602533
- 540-045550
- RNCC: 3 | RNVC: 2
- 251604012
- 540-901408
- RNCC: 3 | RNVC: 2
- 251495007
- 46 5328
- RNCC: 3 | RNVC: 2
- 2152 2104-444
- RNCC: 5 | RNVC: 2
- 251509634
- 3980
- RNCC: 3 | RNVC: 2
- CATHV2/300 PG47 3980
- RNCC: 6 | RNVC: 9
- 251502579
- 4-18449 IT14
- RNCC: 3 | RNVC: 2
- 251495006
- 2152 2104-456
- RNCC: 3 | RNVC: 2
- 21522104456
- RNCC: 3 | RNVC: 2
- 611 832 103
- RNCC: 3 | RNVC: 2
- 251602726
- 01335
- RNCC: 3 | RNVC: 2
- 251502438
- HS 1422 S54.1 ITEM 36
- RNCC: 3 | RNVC: 2
- 251502574
- 4-5226A IT9
- RNCC: 3 | RNVC: 2
- 251608295
- 91673
- RNCC: 3 | RNVC: 2
- 251605298
- 212-0222-30
- RNCC: 3 | RNVC: 2
- 251503110
- 33034-6
- RNCC: 3 | RNVC: 2
- 13252 ITEM 18
- RNCC: 6 | RNVC: 9
- 251502565
- 4-43IB IT9
- RNCC: 3 | RNVC: 2
- 251502435
- HS 1422 S54.1 ITEM 31
- RNCC: 3 | RNVC: 2
- 251604662
- 357 9086
- RNCC: 3 | RNVC: 2
- 251522413
- 2152 2129-259
- RNCC: 3 | RNVC: 2
- 21522129259
- RNCC: 3 | RNVC: 2
- 251502461
- HS 1424 S1.1 ITEM 28
- RNCC: 3 | RNVC: 2
- 251502582
- 4-18449 IT17
- RNCC: 3 | RNVC: 2
- 251601842
- Y751-10590
- RNCC: 3 | RNVC: 2
- 251495004
- 611 902 760
- RNCC: 3 | RNVC: 2
- 2152 2104-207
- RNCC: 3 | RNVC: 2
- 21522104207
- RNCC: 3 | RNVC: 2
- 251491030
- 804730
- RNCC: 3 | RNVC: 2
- 251524230
- 1134-046
- RNCC: 3 | RNVC: 2
- 251527790
- 25-159
- RNCC: 3 | RNVC: 2
- 251612440
- 540-099604
- RNCC: 3 | RNVC: 2
- 251510662
- 3831754
- RNCC: 3 | RNVC: 2
- 251508755
- A3280
- RNCC: 3 | RNVC: 2
- 251601127
- Y201-13120
- RNCC: 3 | RNVC: 2
- 251266499
- 10403306
- RNCC: 3 | RNVC: 2
- N9-8-9X13
- RNCC: 3 | RNVC: 2
- 251612445
- 540-086175
- RNCC: 3 | RNVC: 2
- 251612424
- 540-098852
- RNCC: 3 | RNVC: 2
- 251507874
- 540-900167.8
- RNCC: 3 | RNVC: 2
- 251266507
- 10403219
- RNCC: 3 | RNVC: 2
- N9-8-25-1X1-6
- RNCC: 5 | RNVC: 2
- 251611686
- 68110196-00
- RNCC: 3 | RNVC: 2
- 251604102
- X-90624
- RNCC: 3 | RNVC: 2
- 251602532
- 540-045951
- RNCC: 3 | RNVC: 2
- 251502820
- HS1429S1.1 ITEM 21
- RNCC: 3 | RNVC: 2
- 251233538
- R1378-11-25
- RNCC: 3 | RNVC: 2
- 251510683
- 3831924
- RNCC: 3 | RNVC: 2
- 251485715
- 1353109
- RNCC: 3 | RNVC: 2
- 99 9950-862
- RNCC: 5 | RNVC: 2
- 251612435
- 540-085075
- RNCC: 3 | RNVC: 2
- 251266508
- 10403222
- RNCC: 3 | RNVC: 2
- N9-8-32-1X1-6
- RNCC: 5 | RNVC: 2
- 251600965
- 212-10200-40
- RNCC: 3 | RNVC: 2
- 251450259
- 24311-000900
- RNCC: 3 | RNVC: 2
- 24311-000900
- RNCC: 5 | RNVC: 2
- 251610607
- 540-097915
- RNCC: 3 | RNVC: 2
- 251525101
- 2575-026.628
- RNCC: 3 | RNVC: 2
- 251529057
- C20071614
- RNCC: 3 | RNVC: 2
- D20072609 POS5
- RNCC: 6 | RNVC: 9
- 251600155
- 001835
- RNCC: 3 | RNVC: 2
- 251507528
- 20070-186
- RNCC: 3 | RNVC: 2
- 251602721
- 01190
- RNCC: 3 | RNVC: 2
- 251502221
- 17614
- RNCC: 3 | RNVC: 2
- W211/16-19
- RNCC: 6 | RNVC: 9
- 251399752
- 423839
- RNCC: 5 | RNVC: 2
- 251459687
- 24321-000450
- RNCC: 3 | RNVC: 2
- 251510742
- 700677
- RNCC: 3 | RNVC: 2
- 251503671
- RM0395-30
- RNCC: 3 | RNVC: 2
- 251502813
- W0371B36-024
- RNCC: 3 | RNVC: 2
- 10248
- RNCC: 5 | RNVC: 2
- 10248
- RNCC: 6 | RNVC: 9
- W1075-39 ITEM 024
- RNCC: 6 | RNVC: 9
- 251290697
- T9DN100PC19
- RNCC: 3 | RNVC: 2
- 251290797
- 2-116
- RNCC: 3 | RNVC: 2
- 251503617
- 037201600
- RNCC: 3 | RNVC: 2
- 251606301
- 2152 2101-408
- RNCC: 3 | RNVC: 2
- 251502701
- W0371B36-021
- RNCC: 3 | RNVC: 2
- 10181
- RNCC: 5 | RNVC: 2
- 251137733
- N2-1PC482
- RNCC: 5 | RNVC: 2
- 251294801
- 40-2
- RNCC: 3 | RNVC: 2
- 40-2
- RNCC: 5 | RNVC: 2
- 251502644
- 78.97 X 3.53 SHORE 70
- RNCC: 3 | RNVC: 2
- 251502690
- HS1423S1.1 ITEM 28
- RNCC: 3 | RNVC: 2
- 251610531
- 540-098866
- RNCC: 3 | RNVC: 2
- 251604119
- 357 9092
- RNCC: 3 | RNVC: 2
- 251502566
- 4-43IB IT13
- RNCC: 3 | RNVC: 2
- 251608329
- 90558
- RNCC: 3 | RNVC: 2
- 251502575
- 4-5226A IT10
- RNCC: 3 | RNVC: 2
- 251064260
- 114-3X5-7SMS1586
- RNCC: 2 | RNVC: 1
- 10403524B0F0RSSTDN9-8
- RNCC: 2 | RNVC: 1
- 115X125B0F0RSSTDN9-8
- RNCC: 2 | RNVC: 1
- RM1143-57
- RNCC: 3 | RNVC: 2
- S0R35
- RNCC: 3 | RNVC: 2
- 114-3X5-7-1SMS1586
- RNCC: 3 | RNVC: 2
- 3519289
- RNCC: 5 | RNVC: 2
- TF1820-114-3
- RNCC: 5 | RNVC: 2
- 251612431
- 540-097562
- RNCC: 3 | RNVC: 2
- 251610608
- 540-098865
- RNCC: 3 | RNVC: 2
- 251466470
- 462119-6770020
- RNCC: 3 | RNVC: 2
- 2152 2101-434
- RNCC: 5 | RNVC: 2
- 251503669
- RM0156-24
- RNCC: 3 | RNVC: 2
- 251502202
- 122-93-DN 300 PC052
- RNCC: 3 | RNVC: 2
- 251611027
- 540-085020
- RNCC: 3 | RNVC: 2
- 251525100
- 2575-056.199
- RNCC: 3 | RNVC: 2
- 251502637
- 18.00 X 2.00 SHORE 70
- RNCC: 3 | RNVC: 2
- 251514877
- 700.1398
- RNCC: 3 | RNVC: 2
- 7001398
- RNCC: 3 | RNVC: 2
- (241)S346521522105-114
- RNCC: 5 | RNVC: 2
- 2152 2105-114
- RNCC: 5 | RNVC: 2
- 251612446
- 540-047149
- RNCC: 3 | RNVC: 2
- 251502447
- HS 1424 S1.1 ITEM 21
- RNCC: 3 | RNVC: 2
- 251495010
- 611 823 101
- RNCC: 3 | RNVC: 2
- 2152 2104-201
- RNCC: 5 | RNVC: 2
- 21522104201
- RNCC: 5 | RNVC: 2
- 251503603
- HSAS03071-006
- RNCC: 3 | RNVC: 2
- 251612432
- 540-097075
- RNCC: 3 | RNVC: 2
- 251502611
- HS1312S54.2 ITEM 25
- RNCC: 3 | RNVC: 2
- 251477328
- 33P1561-10
- RNCC: 5 | RNVC: 2
- 5330-00-194-3726
- RNCC: 6 | RNVC: 9
- 251508786
- A16865
- RNCC: 3 | RNVC: 2
- 251502585
- 4-18247 IT14
- RNCC: 3 | RNVC: 2
- 251265289
- 10403510
- RNCC: 3 | RNVC: 2
- N9-8-200X210
- RNCC: 5 | RNVC: 2
- 251611542
- ORING-002
- RNCC: 3 | RNVC: 2
- DEL-3839 POS 15
- RNCC: D | RNVC: 9
- 251610152
- 20070-028 ITEM 50
- RNCC: 3 | RNVC: 2
- 20070-028/50
- RNCC: 5 | RNVC: 2
- 251602718
- 02077
- RNCC: 3 | RNVC: 2
- 251502586
- 4-18247 IT15
- RNCC: 3 | RNVC: 2
- 251439257
- 21522115-404
- RNCC: 5 | RNVC: 2
- (241)S346521522115-404
- RNCC: 8 | RNVC: 2
- 251610574
- 540-085953
- RNCC: 3 | RNVC: 2
- 251606298
- 2152 2101-064
- RNCC: 3 | RNVC: 2
- 251502467
- HS 1421 S1.1 ITEM 28
- RNCC: 3 | RNVC: 2
- 251512320
- 540-016714.8
- RNCC: 3 | RNVC: 2
- 5400167148
- RNCC: 3 | RNVC: 2
- 251502643
- 9.25 X 1.78 SHORE 70
- RNCC: 3 | RNVC: 2
- 251266509
- 10403411
- RNCC: 3 | RNVC: 2
- N9-8-37X42
- RNCC: 5 | RNVC: 2
- 251501921
- 10138
- RNCC: 3 | RNVC: 2
- 251527789
- 25-150
- RNCC: 3 | RNVC: 2
- 251500992
- 01827
- RNCC: 3 | RNVC: 2
- 251266502
- 10403402
- RNCC: 3 | RNVC: 2
- N9-8-18X23
- RNCC: 5 | RNVC: 2
- 251443711
- 27-70850
- RNCC: 3 | RNVC: 2
- NV-709-00-50
- RNCC: 6 | RNVC: 9
- 251603608
- N17220
- RNCC: 3 | RNVC: 2
- N17220
- RNCC: 5 | RNVC: 2
- 251502580
- 4-18449 IT15
- RNCC: 3 | RNVC: 2
- 251516284
- 2152 2105-116
- RNCC: 3 | RNVC: 2
- 21522105116
- RNCC: 3 | RNVC: 2
- 13 9257
- RNCC: 5 | RNVC: 2
- 251524356
- 2145-047
- RNCC: 3 | RNVC: 2
- 251527350
- SP-6335
- RNCC: 3 | RNVC: 2
- 251503614
- 037221700
- RNCC: 3 | RNVC: 2
- 251607498
- 10199/ENGINE KRMB-9_S/N 7725_756
- RNCC: 3 | RNVC: 1
- 251265288
- 10403501
- RNCC: 3 | RNVC: 2
- N9-8-40X50
- RNCC: 5 | RNVC: 2
- 251503604
- HSAS03071-005
- RNCC: 3 | RNVC: 2
- 251607789
- A33575
- RNCC: 3 | RNVC: 2
- 251612423
- 540-099709
- RNCC: 3 | RNVC: 2
- 251448772
- 0115 3813
- RNCC: 6 | RNVC: 9
- 251299989
- 6201535
- RNCC: 3 | RNVC: 2
- 6201535
- RNCC: 5 | RNVC: 2
- 251499300
- 346190069
- RNCC: 3 | RNVC: 2
- 251453148
- 10124666-00
- RNCC: 3 | RNVC: 2
- 251477710
- 569914
- RNCC: 5 | RNVC: 2
- 2-010NBR70+ST TTERING
- RNCC: 5 | RNVC: 2
- 5330-15-066-7348
- RNCC: 6 | RNVC: 9