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Home/Military Standard parts/Seals & Fittings/FSC 5331
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 5331-00-599-0620 P/N 7866-434 · 60-P-31-434 · PX1775-434 · 10V60-141-434 · +17 more
  2. O-RING NSN 5331-00-585-7603 P/N 7866-455 · PX1775-455 · 10V60-141-455 · 3020-236 · +17 more
  3. O-RING NSN 5331-00-585-3353 P/N CU0033-002 · 7866-347 · 60-P-31-347 · 2-347N602-70 · +17 more
  4. O-RING NSN 5331-00-584-1186 P/N 7377-331 · P48026-331 · PRP568-331-4067-70 · 4067-70-331 · +17 more
  5. O-RING NSN 5331-00-580-8918 P/N 182477 · 69890-6 · AS3578-011 · 5331PL1280066 · +17 more
  6. O-RING NSN 5331-00-580-2278 P/N MS9021-010 · 34665-10 · 182476 · AS3578-010 · +17 more
  7. O-RING NSN 5331-00-576-8377 P/N PRP012-8307 · NA151 2-012 · 601-02707 · 95000-012 · +17 more
  8. O-RING NSN 5331-00-529-3723 P/N 7866-155 · 155-7866 · 60-P-31-155 · PX-1775-155 · +17 more
  9. O-RING NSN 5331-00-527-8555 P/N 7866-141 · R1307P141 · 862623 ITEM 24 2IN · 10V60-141-141 · +17 more
  10. O-RING NSN 5331-00-470-7960 P/N 500816 · N15133 · 49358 REV D BUBB# 16 · 232091 · +17 more
  11. O-RING NSN 5331-00-444-0850 P/N 51-125 · RWS-568-125 · 2-125N101-70 · 2-125 · +17 more
  12. O-RING NSN 5331-00-404-8234 P/N 7866-363 · 60-P-31-363 · PX1775-363 · 10V60-141-363 · +17 more
  13. O-RING NSN 5331-00-367-4374 P/N 5489289 ITEM 15 · AS3209-338 · MIL-R-83248/1 · MILR83248 · +17 more
  14. O-RING NSN 5331-00-303-0091 P/N S9413-047 · 65351-11261-116 · AMS7276 · AS3209-047 · +17 more
  15. O-RING NSN 5331-00-291-3270 P/N 7866-271 · 60-P-31-271 · PX1775-271 · 10V60-141-271 · +17 more
  16. O-RING NSN 5331-00-286-0093 P/N 3242420A · C1365PC152 · N21024PC7 · C1098PC84 · +17 more
  17. O-RING NSN 5331-00-285-9881 P/N N20967PC4 · N26229PC6 · C1096PC9 · N25029PC6 · +17 more
  18. O-RING NSN 5331-00-263-5172 P/N 7866-425 · 60-P-31-425 · NB398425-72 · E3355 PC NO. 37 5IN · +17 more
  19. O-RING NSN 5331-00-251-9375 P/N 7866-343 · PX1775-343 · 10V60-141-343 · RT253-65-343 · +17 more
  20. O-RING NSN 5331-00-250-0228 P/N 7866-119 · 60-P-31-119 · F564RCPC30 · 10V60-141-119 · +17 more
  21. O-RING NSN 5331-00-225-9054 P/N S8057R5 · S8057R5 · S8057R5 · AS3582-010 · +17 more
  22. O-RING NSN 5331-00-182-3170 P/N 7866-157 · 60-P-31-157 · PX-1775-157 · 10V60-141-157 · +17 more
  23. O-RING NSN 5331-00-172-7189 P/N W-202 H-A09 ITEM 73 · D-42042 PIECE 6 · WE-00588-40U ITEM 23 · 21333 FIND 34 · +17 more
  24. O-RING NSN 5331-00-166-1087 P/N M83248/1-015 · M83248/2-015 · 7650 ITEM NO 5 · 24-74 · +17 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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