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Technical Data Sheet
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OK-S — O-RING SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

OK-S: O-RING SET.

The O-RING SET is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: OK-S STANDARD O-RING KIT. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-581-2148, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
OK-S
NSN: 5331-01-581-2148
FSC: 5331 — O-ring
CAGE: 1SE29 — M&J ENGINEERING (USA)
SPECIFICATIONS
component_quantity9
part_name_assigned_by_controlling_agencyOK-S STANDARD O-RING KIT
NSN5331-01-581-2148
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: OK-S MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
COMPONENT QUANTITY: 9
•
SUPPLY ITEMS AND QUANTITIES: 1 5/16 IN BROWN O-RING, 1 7/8 IN BROWN O-RING, 1/2 IN VITRON BROWN O-RING, 1 5/16 OD POLYTETRAFLUOROETHYLENE WASHER, 1 10/32 HES STAINLESS STEEL SETSCREW, 1 FLAT HEAD SWIVEL BODY SCREW, 1 3/8 IN OD BROWN O-RING, 1 8MM OD DARK BROWN INSERT MM
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY9
SUPPLY ITEMS AND QUANTITIES1 5/16 IN BROWN O-RING, 1 7/8 IN BROWN O-RING, 1/2 IN VITRON BROWN O-RING, 1 5/16 OD POLYTETRAFLUOROETHYLENE WASHER, 1 10/32 HES STAINLESS STEEL SETSCREW, 1 FLAT HEAD SWIVEL BODY SCREW, 1 3/8 IN OD BROWN O-RING, 1 8MM OD DARK BROWN INSERT MM
PART NAME ASSIGNED BY CONTROLLING AGENCYOK-S STANDARD O-RING KIT
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is OK-S?
OK-S is a O-RING SET.
What is the NSN for OK-S?
OK-S is cataloged in the U.S. Government catalog under NSN 5331-01-581-2148. This indicates validated use in U.S. government and defense supply chains.
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