O-Ring - Brazil (BR)
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 Brazil (BR) - NCB is 19
Page 4 of 4
NSN Format for O-Ring
Codified by Brazil
| 53 | 31 | 19 | 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? 1598 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 4 of 4
- 190051169
- DCN4-386
- RNCC: 3 | RNVC: 2
- 190051241
- DCN4-3469
- RNCC: 3 | RNVC: 2
- 190028507
- 9.0492.11.0.1016
- RNCC: 3 | RNVC: 2
- 190051212
- DCN4-10533-3
- RNCC: 3 | RNVC: 2
- 190050797
- DCN4-770
- RNCC: 3 | RNVC: 2
- 190010184
- DCN4-9143
- RNCC: 3 | RNVC: 2
- 190029114
- 2-166 BUNA SHORE A90
- RNCC: 3 | RNVC: 2
- 190051415
- DCN4-190
- RNCC: 3 | RNVC: 2
- 190003128
- DCN4-186
- RNCC: 3 | RNVC: 2
- 190000250
- DCN4-3808
- RNCC: 3 | RNVC: 2
- 190050774
- DCN4-10984
- RNCC: 3 | RNVC: 2
- 190041481
- 525643-01
- RNCC: 3 | RNVC: 2
- 190001771
- DCN4-5213
- RNCC: 3 | RNVC: 2
- 190001550
- DCN4-7461
- RNCC: 3 | RNVC: 2
- 190001993
- DCN4-8525
- RNCC: 3 | RNVC: 2
- 190051539
- 123919-8
- RNCC: 3 | RNVC: 2
- 190038203
- 01-M32-S5/28-00-10-P
- RNCC: 3 | RNVC: 2
- 190046293
- 1J9671
- RNCC: 3 | RNVC: 2
- 190025487
- 30677740
- RNCC: 3 | RNVC: 2
- 190038186
- CA-30415/NS689-S/17
- RNCC: 3 | RNVC: 2
- 190008837
- DCN4-5479
- RNCC: 3 | RNVC: 2
- 190020200
- 317-08-20V-0632
- RNCC: 3 | RNVC: 2
- 190003240
- DCN4-4681
- RNCC: 3 | RNVC: 2
- 190003210
- DCN4-479
- RNCC: 3 | RNVC: 2
- 190007069
- DCN4-7670
- RNCC: 3 | RNVC: 2
- 190001775
- DCN4-6804
- RNCC: 3 | RNVC: 2
- 190033224
- 468582-2
- RNCC: 3 | RNVC: 2
- 190050535
- 24341-000900
- RNCC: 3 | RNVC: 2
- 190038191
- 992065
- RNCC: 3 | RNVC: 2
- 190000263
- DCN4-6915
- RNCC: 3 | RNVC: 2
- 190034636
- 830.0143-7
- RNCC: 3 | RNVC: 2
- 190051500
- DCN4-2946
- RNCC: 3 | RNVC: 2
- 190025935
- 6127217-034
- RNCC: 3 | RNVC: 2
- 190000260
- DCN4-2822-26-10
- RNCC: 3 | RNVC: 2
- 190003216
- DCN4-3765
- RNCC: 3 | RNVC: 2
- 190000556
- DCN4-5842
- RNCC: 3 | RNVC: 2
- 01-129-9438
- RNCC: 6 | RNVC: 9
- 190007798
- DCN4-1069
- RNCC: 3 | RNVC: 2
- 190027726
- N17A I-38X1,5
- RNCC: 3 | RNVC: 2
- 190051217
- DCN4-10534-5
- RNCC: 3 | RNVC: 2
- 190021811
- 01-H12-S30/38-00E1-2-P
- RNCC: 3 | RNVC: 2
- 190025562
- 345-03243-0
- RNCC: 3 | RNVC: 2
- 190010179
- DCN4-9169
- RNCC: 3 | RNVC: 2
- 190000266
- DCN4-6823
- RNCC: 3 | RNVC: 2
- 190021813
- 01-H12-530/38-00E1-10-P
- RNCC: 3 | RNVC: 2
- 190007749
- DCN4-6636-5
- RNCC: 3 | RNVC: 2
- 190035335
- 4J-0520
- RNCC: 3 | RNVC: 2
- 190051215
- DCN4-10534-1
- RNCC: 3 | RNVC: 2
- 190001532
- DCN4-2629
- RNCC: 3 | RNVC: 2
- 190007728
- DCN4-4358
- RNCC: 3 | RNVC: 2
- 190004760
- DCN4-5862
- RNCC: 3 | RNVC: 2
- 190051216
- DCN4-10534-4
- RNCC: 3 | RNVC: 2
- 190000748
- DCN4-9884
- RNCC: 3 | RNVC: 2
- 00-250-0235
- RNCC: 6 | RNVC: 9
- 190029148
- 30-01962/OD POS.647
- RNCC: 3 | RNVC: 2
- 190033674
- 935620/28
- RNCC: 3 | RNVC: 2
- 190029157
- 1101755
- RNCC: 3 | RNVC: 2
- 190050791
- DCN4-1366
- RNCC: 3 | RNVC: 2
- 190051221
- DCN4-10535-5
- RNCC: 3 | RNVC: 2
- 190021837
- 01-H12-S30/38-00E1-6-BUME2
- RNCC: 3 | RNVC: 2
- 190051211
- DCN4-10533-7
- RNCC: 3 | RNVC: 2
- 190005874
- DCN4-6346-5
- RNCC: 3 | RNVC: 2
- 190025745
- 10403301
- RNCC: 3 | RNVC: 2
- N9-8-3,3X2,4
- RNCC: 5 | RNVC: 2
- 190008834
- DCN4-2513
- RNCC: 3 | RNVC: 2
- 190051247
- DCN4-3463
- RNCC: 3 | RNVC: 2
- 190007793
- DCN4-6946
- RNCC: 3 | RNVC: 2
- 190000273
- DCN4-6885
- RNCC: 3 | RNVC: 2
- 190038689
- F11-02399-0003
- RNCC: 3 | RNVC: 2
- 190006074
- DCN4-9871
- RNCC: 3 | RNVC: 2
- 190046928
- 43-20208/ITEM-28
- RNCC: 3 | RNVC: 2
- 190001982
- DCN4-4010
- RNCC: 3 | RNVC: 2
- 190038654
- FIG276-2 1/2 PG-11
- RNCC: 3 | RNVC: 2
- 190042920
- RZ30-01178/4-4B1183
- RNCC: 3 | RNVC: 2
- 190048236
- DCN-4-3804
- RNCC: 3 | RNVC: 2
- 190000255
- DCN4-4174
- RNCC: 3 | RNVC: 2
- 190042231
- 80-400-01866-706
- RNCC: 3 | RNVC: 2
- 190042739
- 86-521-01519-027
- RNCC: 3 | RNVC: 2
- 190037613
- 223406-15
- RNCC: 3 | RNVC: 2
- 190046909
- 24321-000950
- RNCC: 3 | RNVC: 2
- 190000280
- DCN4-3517
- RNCC: 3 | RNVC: 2
- 190012250
- DCN4-4556
- RNCC: 3 | RNVC: 2
- 190029141
- 3833852
- RNCC: 3 | RNVC: 2
- 190020461
- 104518800PC430-01
- RNCC: 3 | RNVC: 2
- 190005932
- DCN4-4011
- RNCC: 3 | RNVC: 2
- 190029152
- 4-4-065047-53-370
- RNCC: 3 | RNVC: 2
- 190034917
- CJ-1066/89 POS.24
- RNCC: 3 | RNVC: 2
- 190003122
- DCN4-274
- RNCC: 3 | RNVC: 2
- 190004571
- DCN4-5580
- RNCC: 3 | RNVC: 2
- 190045874
- 148620-01300
- RNCC: 3 | RNVC: 2
- 190051235
- DCN4-8529
- RNCC: 3 | RNVC: 2
- 190001499
- DCN4-6333
- RNCC: 3 | RNVC: 2
- 190003238
- DCN4-4676
- RNCC: 3 | RNVC: 2
- 190041752
- 51M7041
- RNCC: 3 | RNVC: 2
- 190043676
- DCN4-6341
- RNCC: 3 | RNVC: 2
- 190000292
- DCN4-3289
- RNCC: 3 | RNVC: 2
- 190000576
- DCN4-5627
- RNCC: 3 | RNVC: 2
- 00-579-1070
- RNCC: 6 | RNVC: 9
- 190019375
- 028-12961-003
- RNCC: 3 | RNVC: 2
- 190000740
- DCN4-7719
- RNCC: 3 | RNVC: 2
- 00-835-1686
- RNCC: 6 | RNVC: 9
- 190051249
- DCN4-10531-2
- RNCC: 3 | RNVC: 2
- 190000783
- DCN4-9838
- RNCC: 3 | RNVC: 2
- 00-250-0228
- RNCC: 6 | RNVC: 9
- 190033670
- 01H12530-28-002-2P-BUKO1
- RNCC: 3 | RNVC: 2
- 190033672
- MB-14988/053
- RNCC: 3 | RNVC: 2
- 190051227
- DCN4-10536-5
- RNCC: 3 | RNVC: 2
- 190040750
- 80-400-06821-707
- RNCC: 3 | RNVC: 2
- 190005687
- DCN4-4107-5
- RNCC: 3 | RNVC: 2
- 190003126
- DCN4-4217
- RNCC: 3 | RNVC: 2
- 190001767
- DCN4-4154
- RNCC: 3 | RNVC: 2