Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-121-0192 P/N 7377-030 · 40398-4 FIND NO 20 · P48026-030 · 16606A69-206 · +30 more
  2. O-RING NSN 5331-01-013-1453 P/N 477380003 · 2-015BUNAN70 · 2AW225 · 2-15N219-7 · +30 more
  3. O-RING NSN 5331-00-774-6894 P/N S923-XX-MMA-010/LCS SH7-47 #32 · 70-12-113 · 52079-20 · 2-216 BUNA-N · +30 more
  4. O-RING NSN 5331-01-047-0435 P/N 58-011-56 · 803-6397247-AXX1-29 · AMS-P-83461/1 · M83461/1-011 · +30 more
  5. O-RING NSN 5331-00-729-6632 P/N VH3143 · 202994PC10ASSYR · 1164-8-PIECE 7 · 51-056-H PIECE 34 · +30 more
  6. O-RING NSN 5331-00-727-2637 P/N 7377-023 · MS28775-023 · P48026-023 · PRP568-023-4067-70 · +30 more
  7. O-RING NSN 5331-00-702-1048 P/N 7377-126 · MS28775-126 · P48026-126 · 4067-70-126 · +30 more
  8. O-RING NSN 5331-00-530-2002 P/N 2B287-1004P74 · 250S74 · AN6227B74 · 368-6709-805441REVAPC7 · +30 more
  9. O-RING NSN 5331-00-530-1998 P/N 510149A · 145D826REVAPC4 · 172D565REVAPC4 · 289-1004P87 · +30 more
  10. O-RING NSN 5331-00-498-5733 P/N 011-11646 · PRP011-11646 · SG3945PC28 · SG3939PC28 · +30 more
  11. O-RING NSN 5331-00-291-3070 P/N 7866-240 · GS570EM240 · 60-P-31-240 · 1-222257 · +30 more
  12. O-RING NSN 5331-00-291-1852 P/N PR2002-1PC65 · 546901 · AN6230B43 · PR2001-1PC65 · +30 more
  13. O-RING NSN 5331-00-265-1093 P/N GS570EM028 · 7866-028 · 60-P-31-028 · S0310-028F · +30 more
  14. O-RING NSN 5331-00-248-3839 P/N MS29513-111 · 7866-111 · 866-111 · 60-P-31-111 · +30 more
  15. O-RING NSN 5331-00-248-3838 P/N MS29513-013 · 7866-013 · 60-P-31-013 · FF-101-0 ITEM 18 · +30 more
  16. O-RING NSN 5331-00-187-3614 P/N 546907 · AN6230B49 · X13112 · XA13112 · +30 more
  17. O-RING NSN 5331-00-166-8395 P/N 649-393-035-0 · M83248/1-035 · AMS7276 · AS3209-035 · +30 more
  18. O-RING NSN 5331-00-162-5688 P/N 275744140 · 10-400 · 30-007C-B IT 16 · 274485PC9 · +30 more
  19. O-RING NSN 5331-00-160-9489 P/N 10205-2 PIECE 15 · 845-2110228 PIECE 62 · ARP568-009MILP19468 · A6486-009-142 · +30 more
  20. O-RING NSN 5331-00-007-6143 P/N 7866-023 · 7941379-002 · 60-P-31-023 · PX-1775-023 · +30 more
  21. O-RING NSN 5331-01-050-5024 P/N 7377-260 · MS28775-260 · 11-600-480 · P48026-260 · +29 more
  22. O-RING NSN 5331-00-618-4602 P/N 7377-451 · 287-1004P78 · 250S78 · AN6227-78 · +29 more
  23. O-RING NSN 5331-00-595-6327 P/N AS568A-010 · 002222 · MARK-114 ITEM 3 · C-0614 ITEM 27 · +29 more
  24. O-RING NSN 5331-00-585-8249 P/N 7377-246 · 246-7377 · P480206-246 · PRP568-246-4067-70 · +29 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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