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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 5331-00-759-2113 P/N M25988/1-014 · ARP568-014-11647 · 287-6008P014 · HPS55-014 · +19 more
  2. O-RING NSN 5331-00-724-7902 P/N 2-013S604-70 · 07A568-013S · 013-7117 · B86002-013S · +19 more
  3. O-RING NSN 5331-00-690-9703 P/N 7866-449 · 60-P-31-449 · 63B0267-449 · PX1775-449 · +19 more
  4. O-RING NSN 5331-00-585-6661 P/N 7866-036 · 60-P-31-036 · 2-36-1011-10 · PX-1775-036 · +19 more
  5. O-RING NSN 5331-00-579-3159 P/N 348-7377 · 721-7069909-38 · PRP568-348-4067-70 · MS28775-348 · +19 more
  6. O-RING NSN 5331-00-542-0622 P/N MS28775-343 · 7377-343 · P48026-343 · 4067-70-343 · +19 more
  7. O-RING NSN 5331-00-472-2783 P/N 7799-14 · 914-1487 · F-14260-14 · 2HP761 · +19 more
  8. O-RING NSN 5331-00-470-8764 P/N B31000-638 · G802A33 · 7866-152 · 60-P-31-152 · +19 more
  9. O-RING NSN 5331-00-394-9850 P/N 912-9259 · 649-602-903-0 · B55106-12 · 779REVAPC29 · +19 more
  10. O-RING NSN 5331-00-364-9913 P/N PRP164-19357 · PRP164-16207 · 34665-164 · S9026L164 · +19 more
  11. O-RING NSN 5331-00-298-9977 P/N AS568-016 MIL-P25732C · AMS-P-5315 · AS568-016 · 5331PL1244326 · +19 more
  12. O-RING NSN 5331-00-298-6188 P/N 7866-439 · 60-P-31-439 · PX1775-439 · 10V60-141-439 · +19 more
  13. O-RING NSN 5331-00-297-9987 P/N 7377-333 · S0310-333R · P48026-333 · 4067-70-333 · +19 more
  14. O-RING NSN 5331-00-291-7336 P/N MS29513-135 · 7866-135 · 60-P-31-135 · PX-1775-135 · +19 more
  15. O-RING NSN 5331-00-265-1074 P/N 7866-124 · GS570EM124 · 10V60-141-124 · RT253-65-124 · +19 more
  16. O-RING NSN 5331-00-252-6050 P/N 7866-138 · 60-P-31-138 · 91039-08 · PX-1775-138 · +19 more
  17. O-RING NSN 5331-00-252-6047 P/N 7866-265 · 60-P-31-265 · PX1775-265 · 10V60-141-265 · +19 more
  18. O-RING NSN 5331-00-196-5351 P/N 546835 · PRP902-65 · ZB287-1004P65 · 0184-65 · +19 more
  19. O-RING NSN 5331-00-196-5342 P/N 546827 · 250S57 · 4700-3261742REVBPC14 · T1-4801-1286732REVAPC16 · +19 more
  20. O-RING NSN 5331-00-186-2750 P/N 250S75 · HN1309REVAITEM143 · K1-4302-1001488ALT1PC7 · 271-6709-958286ALT1PC14 · +19 more
  21. O-RING NSN 5331-00-182-3171 P/N 7866-040 · 60-P-31-040 · 901160 · PX-1775-040 · +19 more
  22. O-RING NSN 5331-00-167-5136 P/N AS3209-150 · AMS7276G · MILR83248 · M83248/1-150 · +19 more
  23. O-RING NSN 5331-00-166-8394 P/N 649-393-034-0 · S9413-034 · S9413-034 · AS3209-034 · +19 more
  24. O-RING NSN 5331-00-166-1085 P/N 013-17159 · 890494C1 · 5793258 FIND 057 · 5793249 FIND 119 · +19 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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