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Technical Data Sheet
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SK-16-3S — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SK-16-3S: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-237-7553, 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
SK-16-3S
NSN: 5331-01-237-7553
FSC: 5331 — O-ring
CAGE: 54846 — MODULAR CONTROLS CORP (USA)
SPECIFICATIONS
Part NumberSK-16-3S
NSN5331-01-237-7553
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SK-16-3S 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
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 2
2CX433Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SK-16-3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SK-16-3S?
SK-16-3S is a O-RING.
What parts can replace SK-16-3S?
There are 2 known substitutes for SK-16-3S: 2CX433, SK-16-3. Substitute compatibility should be verified for your specific system.
What is the NSN for SK-16-3S?
SK-16-3S is cataloged in the U.S. Government catalog under NSN 5331-01-237-7553. This indicates validated use in U.S. government and defense supply chains.
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