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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 5331-01-124-7983 P/N N31855-3 · AS28775-465 · MS28775-465 · MS28775-465 · +4 more
  2. O-RING NSN 5331-01-123-5666 P/N 1298023-11 · 1298023-11 · 1298023-11 · 75.92X1.78 41B8 · +4 more
  3. O-RING NSN 5331-01-123-5664 P/N 1298023-2 · 1298023-2 · 28.30X1.78-41B8 · 2-025 E540-80 1W2B · +4 more
  4. O-RING NSN 5331-01-123-5658 P/N 1298023-10 · 1298023-10 · 9.25X1.78 41B8 · 1298023-10 · +4 more
  5. O-RING NSN 5331-01-123-5648 P/N 5330PL0890726 · MS28775-123 · V3D10076ITEM13 · A180-123MILP25732 · +4 more
  6. O-RING NSN 5331-01-123-3719 P/N 2100-11 · AMS3337 · AS568-015 · BACP11J15 · +4 more
  7. O-RING NSN 5331-01-122-3910 P/N AS28775-166 · ARP568-166MILP5516CLB · MS28775-166 · MS28775-166 · +4 more
  8. O-RING NSN 5331-01-118-5698 P/N J228P112 · J228P112 · 5331PL0166435 · J228P112 · +4 more
  9. O-RING NSN 5331-01-117-8831 P/N 5331PL0890489 · RE0267387 · MS28775-276 · P-ZLAB-0036413 · +4 more
  10. O-RING NSN 5331-01-116-1052 P/N 101-138 · M25988/1-138 · MIL-DTL-25988/1 · MIL-R-25988/1 · +4 more
  11. O-RING NSN 5331-01-115-1297 P/N 1298023-24 · 1298023-24 · 2-015E515-80 · 23-24 · +4 more
  12. O-RING NSN 5331-01-114-9823 P/N ASM7362 · AS568-469MIL-R-7362 TY 1 · AS568-469 · 07-FF-073-P · +4 more
  13. O-RING NSN 5331-01-113-9866 P/N 7866-373 · 457-60-373 · MS29513-373 · 1793-373 · +4 more
  14. O-RING NSN 5331-01-113-5198 P/N 21075 FIND 42 · 06689906144 · 8004-30 · 9601 PIECE 8 · +4 more
  15. O-RING NSN 5331-01-111-2805 P/N S8990-037 · S8990-037 · S8990-037 · S8990-037 · +4 more
  16. O-RING NSN 5331-01-109-7498 P/N AS568-912/MIL-PRF-114 TY1 CL5 · AS568-912 MIL-G-1149 TY1 CL5 · MIL-PRF-1149 · AS568-912M1L-G- 1149TY1CL5 · +4 more
  17. O-RING NSN 5331-01-106-0940 P/N M83248/2-227 · M83248/2-227 · MIL-R-83248/2 · 5331PL1260430 · +4 more
  18. O-RING NSN 5331-01-105-9154 P/N AS3581-129 · MIL-R-83248/2 · M83248/2-129 · 5331PL1291528 · +4 more
  19. O-RING NSN 5331-01-104-4411 P/N AMS-7259 · AS3581-143 · MIL-R-83248/2 · M83248/2-143 · +4 more
  20. O-RING NSN 5331-01-102-1898 P/N 7866-359 · 457-60-359 · MS29513-359 · 1793-359 · +4 more
  21. O-RING NSN 5331-01-101-8173 P/N 16015-59-90 · 16015-59-90 · 16015-59-90 · 5331PL0686120 · +4 more
  22. O-RING NSN 5331-01-101-4773 P/N 60K30018 · 60K-30018 · 89438540 · T716-001-037 · +4 more
  23. O-RING NSN 5331-01-101-2774 P/N M25988/3-016 · MIL-R-25988/3 · MIL-DTL-25988/3 · 16L308-8 · +4 more
  24. O-RING NSN 5331-01-096-8822 P/N 5331PL1259699 · 52660-300 ITEM 9 · 52660-300 ITEM 9CP · 3021-32CP · +4 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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