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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 5331-01-130-8189 P/N 16606A54-228 · M25988/3-156 · MIL-R-25988/3 · MIL-DTL-25988/3 · +1 more
  2. O-RING NSN 5331-01-129-9842 P/N 58-54-41 · AS568-114 · 2-114 B612-70 · 2-114B318-70 · +1 more
  3. O-RING NSN 5331-01-129-6962 P/N MIL-R-25988/1 · MIL-DTL-25988/1 · M25988/1-311 · MIL-R-25988 TY1 CL1 GR 70 · +1 more
  4. O-RING NSN 5331-01-129-3156 P/N MIL-DTL-25988/3 · M25988/3-346 · MIL-R-25988/3 · M25988/3-346 · +1 more
  5. O-RING NSN 5331-01-129-3150 P/N MIL-R-25988/3 · M25988/3-260 · MIL-DTL-25988/3 · 2-260L1223-60 · +1 more
  6. O-RING NSN 5331-01-129-3138 P/N MIL-DTL-25988/4 · MIL-R-25988/4 · M25988/4-154 · 363/1-154 · +1 more
  7. O-RING NSN 5331-01-129-2007 P/N MIL-R-25988/3 · M25988/3-330 · MIL-DTL-25988 · MIL-DTL-25988/3 · +1 more
  8. O-RING NSN 5331-01-129-2005 P/N MIL-R-25988/1 · M25988/1-121 · MIL-DTL-25988/1 · 5331PL1940855 · +1 more
  9. O-RING NSN 5331-01-128-6069 P/N MIL-DTL-25988/1 · M25988/1-907 · MIL-R-25988/1 · 10124279 · +1 more
  10. O-RING NSN 5331-01-128-4017 P/N 147-08307 · 147-7507 · 671-00147 · AS568-147AMS727 0 · +1 more
  11. O-RING NSN 5331-01-128-0141 P/N 301917 · 301917 · 301917 · 301917 · +1 more
  12. O-RING NSN 5331-01-127-2970 P/N AS568-227 MIL-P-5510 · ARP568-227MILP5510 · AS568C-227 · AS568-227 MIL-P-5510 · +1 more
  13. O-RING NSN 5331-01-126-9086 P/N AS568-119 MIL-R-8791 · AS568-119 · 5120T-4MP-150 ITEM 4 · 4119-20 · +1 more
  14. O-RING NSN 5331-01-126-7321 P/N 1298023-14 · 1298023-14 · 1298023-14 · 1298023-14 · +1 more
  15. O-RING NSN 5331-01-126-5280 P/N MS9386-045 · MS9386-045 · MS9386-045 · MS9386-045 · +1 more
  16. O-RING NSN 5331-01-126-1552 P/N R49388-916J · 8598B · PL-200138F PIECE 209 · 8598B · +1 more
  17. O-RING NSN 5331-01-126-1231 P/N AS568-908 · 16094 ITEM 38 · 16095 ITEM 39 · AS568-908 AMS7276 · +1 more
  18. O-RING NSN 5331-01-125-6267 P/N NAS1611-134A · NAS1613 · NAS1611-134 · EN6075-134 · +1 more
  19. O-RING NSN 5331-01-125-1243 P/N GS570J2K212 · A-212SR569-70 · 212 2336 · 212-1111 · +1 more
  20. O-RING NSN 5331-01-125-0828 P/N 16P00100-0153 · 16P00111-0153 · 16P00111-0153 · 15S1782-0000 PIECE 57 · +1 more
  21. O-RING NSN 5331-01-124-3109 P/N 201-120 ITEM 9 · 300-590P7 · 2-122C557-70 · 2-122C · +1 more
  22. O-RING NSN 5331-01-124-1118 P/N VA70-9-008 · VA70-9K-008 · VA70-9-008 · VA70-9K-008 · +1 more
  23. O-RING NSN 5331-01-124-1112 P/N 10394421 · OR-906 · 0R-906 · 0RH13-906 GOV · +1 more
  24. O-RING NSN 5331-01-123-6049 P/N K70-0024 · 902-2 · 3-902-2 C873-70 · 3-902-2 C557-70 · +1 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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