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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 5331-01-112-8636 P/N 76902-31-020 · PRP568-020-1133-60 · MIL-R-25988/3 · MS25988/3-020 · +5 more
  2. O-RING NSN 5331-01-112-1765 P/N D50-0007 ITEM 14 · AS3581-032 · M83248/2-032 · MIL-R-83248/2 · +5 more
  3. O-RING NSN 5331-01-108-3783 P/N ST269-Z-5-BMIL · AS568-263 · AS568-263MILG1149TYPE2CLASS5 · MIL-PRF-1149 TY 2 CL 5 · +5 more
  4. O-RING NSN 5331-01-107-4960 P/N AMS-P-83461/1 · M83461/1-428 · M83461/1-428 · MIL-P-83461/1 · +5 more
  5. O-RING NSN 5331-01-107-4959 P/N M83461/1-003 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-003 · +5 more
  6. O-RING NSN 5331-01-101-8176 P/N AS28775-158 · MS28775-158 · MS28775-158 · ST164409AV · +5 more
  7. O-RING NSN 5331-01-101-6076 P/N 30-007C-B IT 37 · 10-290 · 2-350 N219-7 · 54-24-56 · +5 more
  8. O-RING NSN 5331-01-099-7991 P/N 457-60-470 · MS29513-470 · 1793-470 · 5331PL0699174 · +5 more
  9. O-RING NSN 5331-01-098-2929 P/N M25988/3-908 · 16606A54-194 · MIL-R-25988/3 · MIL-DTL-25988/3 · +5 more
  10. O-RING NSN 5331-01-096-8825 P/N AS3581-912 CP · M83248-2-912 · 5331PL0821038 · 63020 ITEM NO. 17 · +5 more
  11. O-RING NSN 5331-01-096-8820 P/N AS3581-018CP · M83248-2-018 · 63020 ITEM 34 · M83248/2-018 · +5 more
  12. O-RING NSN 5331-01-095-3709 P/N BACP11AC017-60 · M25988/3-017 · MIL-R-25988/3 · MIL-DTL-25988/3 · +5 more
  13. O-RING NSN 5331-01-094-9301 P/N AS568-918 · SAE AMS-P-5510 · SAE AS568B-918 · 3-918N507-90 · +5 more
  14. O-RING NSN 5331-01-093-5161 P/N N0507-2017 · 2-017N507-90 · AS568-017MIL-P-5510 · 2-017 N507-90 · +5 more
  15. O-RING NSN 5331-01-093-1577 P/N PRP012-11207 · 012-11207 · AS568-012AMS3337 · 744534200-012 · +5 more
  16. O-RING NSN 5331-01-091-2617 P/N 10741-B-18E · PL-11230-F-18 ITEM64AX64B · B-500S64X6 · 10741-B-18 · +5 more
  17. O-RING NSN 5331-01-030-2681 P/N 0.237IDX0.040W COMPOUND 11647 · 0.237IDX0.040W COMPOUND 1903-70 · 0.237IDX0.040W COMPOUND 1393-70 · 0.237IDX0.040W COMPOUND F80 · +5 more
  18. O-RING NSN 5331-01-029-3674 P/N 2507294-50 · 2507294-50 · 8633B · AS568-906MIL-G- 21569CL1 · +5 more
  19. O-RING NSN 5331-01-029-2344 P/N ARP568-904MILG23652 TY2 · A6689-904-212 · ARP568-904MILG23652 TY2CP · SAE-AS3581CP · +5 more
  20. O-RING NSN 5331-01-028-5738 P/N 910-11207 · B63114-10 · 8439-70-17-10 · C006-10 · +5 more
  21. O-RING NSN 5331-01-028-0816 P/N AS568-012 · D2000 M2BG710EF11EF21EO34F1 · 4400871-0120 · T5201547-116 · +5 more
  22. O-RING NSN 5331-01-026-4387 P/N AS568B-381 · 2-381C147-70 · 2-381 · 2-381C147-7 · +5 more
  23. O-RING NSN 5331-01-024-6302 P/N D2000 GR M2AA815A13F17EA14 · AS568-916 · 3-16E540-8 · 3-916E540-80 · +5 more
  24. O-RING NSN 5331-01-018-6498 P/N 037-11647 · 94501-5 · M25988/1-037 · MIL-DTL-25988/1 · +5 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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