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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 5331-01-375-4521 P/N 115J565ITEM2 · 115J565ITEM2 · MS9068-026 · MS9068-026 · +8 more
  2. O-RING NSN 5331-01-360-7725 P/N 2002313 · 10025425 · 9HR356 · 29507437 · +8 more
  3. O-RING NSN 5331-01-346-6177 P/N PWA55536-2 · AS3578-002 · 5330PL0673239 · MS9021-002 · +8 more
  4. O-RING NSN 5331-01-336-3236 P/N AMS-P-83461/1 · M83461/1-029 · M83461/1-029 · MIL-P-83461/1 · +8 more
  5. O-RING NSN 5331-01-324-5267 P/N PL2850-0030 FIND 53 · AS3209-128CP · AMS7276 · MIL-R-83248/1-128 · +8 more
  6. O-RING NSN 5331-01-320-9556 P/N 04811-40140 · B05-L REFERENCE 030 · B05-L/030 · 04811-40140 · +8 more
  7. O-RING NSN 5331-01-286-4695 P/N AMS7259 · AS3581-132CP · M83248/2-132 · BS1806-132 · +8 more
  8. O-RING NSN 5331-01-263-6175 P/N 7255-260 PART 41 · MIL-P-25732 · AS568 · 501 4495460 PART 41 · +8 more
  9. O-RING NSN 5331-01-262-4144 P/N 2870-0001-41 ITEM 14 · 1970 002 ITEM 21 · AS3209-008CP · MIL-R-83248/1-008 · +8 more
  10. O-RING NSN 5331-01-249-7877 P/N 218-4642021ITEM1-36 · MS28775-216 · MIL-P-25732 · MS28775-216 · +8 more
  11. O-RING NSN 5331-01-205-3476 P/N N25212 · AS3581-144 · AMS7259 · M83248/2-144 · +8 more
  12. O-RING NSN 5331-01-205-2857 P/N ANS3581-223 V90 · AS3581-223 · ANS 7259 · AMS7259 · +8 more
  13. O-RING NSN 5331-01-203-2327 P/N N829 SHEET PIECE 9 · AMS7259D · AS568A-245MIL-C-23652TYPE2 · AMS7259 · +8 more
  14. O-RING NSN 5331-01-199-0265 P/N 110-11737 · PRP110-11737 · MS9386-110 · AS9386 · +8 more
  15. O-RING NSN 5331-01-194-8661 P/N PRP115-11648 · 114-11648 · MIL-R-25988/4 · MIL-DTL-25988/4 · +8 more
  16. O-RING NSN 5331-01-186-6872 P/N M83461/1-228 · 2000005PL FIND NO. 49 · PL44616-121H FIND NO 17 · AMS-P-83461/1 · +8 more
  17. O-RING NSN 5331-01-185-2569 P/N C8660-3234 PC NO 13 · 4564-225,FG · M83461/1-225 · AMS-P-83461/1 · +8 more
  18. O-RING NSN 5331-01-184-5984 P/N AS568-365 · AS568B-365 · AS568-365MIL-G-21569 CLASS 1 · MIL-G-21569 CLASS 1 · +8 more
  19. O-RING NSN 5331-01-183-8766 P/N V60 PIECE 28 · D31680 · 5468-16BW PC 13 · E73838 PC 122 · +8 more
  20. O-RING NSN 5331-01-183-0990 P/N 5D3-03870-11 · C8658-3232 PC NO 12 · 4564-224,FG · AMS-P-83461/1 · +8 more
  21. O-RING NSN 5331-01-177-3435 P/N 5D3-03870-8 · M83461/1-222 · AMS-P-83461/1 · M83461/1-222 · +8 more
  22. O-RING NSN 5331-01-175-9164 P/N AMS7259 · AS3581 · M83248/2-211 · MIL-R-83248/2 · +8 more
  23. O-RING NSN 5331-01-172-2432 P/N AMS-P-83461/1 · M83461/1-340 · M83461/1-340 · MIL-P-83461/1 · +8 more
  24. O-RING NSN 5331-01-163-4976 P/N 21522115-428 · 451-0964 · HE010019 · 21522115-428 · +8 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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