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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 5331-01-237-6867 P/N PD0024263 ITEM 553 · 02653 · MS29513-031 · MIL-P-5315 · +7 more
  2. O-RING NSN 5331-01-236-1749 P/N AMS7259 · AS3581-031 · MIL-R-83248/2 · M83248/2-031 · +7 more
  3. O-RING NSN 5331-01-219-7677 P/N ST1946-123 · M83485/1-123 · AMS-R-83485/1 · M83485/1-123 · +7 more
  4. O-RING NSN 5331-01-218-7139 P/N 7-5075ITEM 15 · 7-5075ITEM 15 · AMC-R-83485 · M83485/1-326 · +7 more
  5. O-RING NSN 5331-01-207-7233 P/N ST260Z6B · 72T-B-5 · SD072031-1IN ITEM 6 · SD072011-3/4-ITEM 6 · +7 more
  6. O-RING NSN 5331-01-201-2266 P/N M83485/1-021 · AMS-R-83485/1 · MIL-R-83485/1 · M83485/1-021 · +7 more
  7. O-RING NSN 5331-01-200-6292 P/N M25988/4-124 · 182579 · M25988/4-124 · MIL-R-25988/4 · +7 more
  8. O-RING NSN 5331-01-200-6290 P/N PRP117-11648 · 117-11648 · MIL-R-25988/4 · MIL-DTL-25988/4 · +7 more
  9. O-RING NSN 5331-01-199-5375 P/N NAS1594-338 · AS3581-338 · AS3581-016CP · MIL-R-83248/2 · +7 more
  10. O-RING NSN 5331-01-194-8963 P/N ASM7259 · AS3581-140 · AMS7259D · M83248/2-140 · +7 more
  11. O-RING NSN 5331-01-190-2750 P/N 845-2445071ITEM6 · MS28775-017 · 71978 PC 29 · 5330PL1036689 · +7 more
  12. O-RING NSN 5331-01-187-9076 P/N 019-19357 · PRP019-19357 · AS3209-019 · MILR83248 · +7 more
  13. O-RING NSN 5331-01-185-1927 P/N M83461/1-453 · AMS-P-83461/1 · M83461/1-453 · MIL-P-83461/1 · +7 more
  14. O-RING NSN 5331-01-183-4060 P/N 7255-264 PIECE 38 · 222-006 · 100810 · RV338 · +7 more
  15. O-RING NSN 5331-01-183-0972 P/N AMS-P-83461/1 · M83461/1-226 · MIL-P-83461/1 · M83461/1-226 · +7 more
  16. O-RING NSN 5331-01-182-8394 P/N AS568B-270 · MIL-G-21569B CL 1 · WG115270 · M83461/1-270 · +7 more
  17. O-RING NSN 5331-01-182-7410 P/N M83461/1-210 · AMS-P-83461/1 · M83461/1-210 · MIL-P-83461/1 · +7 more
  18. O-RING NSN 5331-01-181-0821 P/N 8534373 · 226344 · MIL-G-21610 · AS568-908 · +7 more
  19. O-RING NSN 5331-01-180-5228 P/N 130982-28N · N830SH1PC82 · N91-84308 · M83248/2-230 · +7 more
  20. O-RING NSN 5331-01-178-8326 P/N QD1001/017 · QD100/017 · QD1001017 · BS1806-017 · +7 more
  21. O-RING NSN 5331-01-178-7384 P/N PRP110-11648 · 110-11648 · M25988/4-110 · MIL-R-25988 · +7 more
  22. O-RING NSN 5331-01-177-3403 P/N AS568-034MIL-R-83248 CL 2 · AS3581-034 · AMS7259 · MIL-R-83248/2 · +7 more
  23. O-RING NSN 5331-01-175-0713 P/N M83461/1-211 · AMS-P-83461/1 · M83461/1-211 · MIL-P-83461/1 · +7 more
  24. O-RING NSN 5331-01-169-0653 P/N MIL-R-25988/4 · MIL-R-25988 · M25988/4-028 · MIL-DTL-25988/4 · +7 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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