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4KK328 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4KK328: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYPROPYLENE, temp_rating: -67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, center_hole_diameter: 8.92 MILLIMETERS NOMINAL MM, cross-sectional_height: 1.83 MILLIMETERS NOMINAL MM, end_item_identification: MRAP RG-33 AUV; MRAP - COUGAR. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-317-9506, 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
4KK328
NSN: 5331-01-317-9506
FSC: 5331 — O-ring
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialPLASTIC POLYPROPYLENE
temp_rating-67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
center_hole_diameter8.92 MILLIMETERS NOMINAL MM
cross-sectional_height1.83 MILLIMETERS NOMINAL MM
end_item_identificationMRAP RG-33 AUV; MRAP - COUGAR
NSN5331-01-317-9506
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4KK328 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
•
TEMP RATING: -67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 1.83 MILLIMETERS NOMINAL MM
•
CENTER HOLE DIAMETER: 8.92 MILLIMETERS NOMINAL MM
•
MATERIAL: PLASTIC POLYPROPYLENE
TECHNICAL CHARACTERISTICS
TEMP RATING-67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT1.83 MILLIMETERS NOMINAL MM
CENTER HOLE DIAMETER8.92 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONMRAP RG-33 AUV; MRAP - COUGAR
MATERIALPLASTIC POLYPROPYLENE
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
5331PL2124652Reference document
Same NSN cross-reference
Reference document — Informative reference only
10076371Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 4KK328?
4KK328 is a O-RING.
What parts can replace 4KK328?
There are 2 known substitutes for 4KK328: 5331PL2124652, 10076371. Substitute compatibility should be verified for your specific system.
What is the NSN for 4KK328?
4KK328 is cataloged in the U.S. Government catalog under NSN 5331-01-317-9506. This indicates validated use in U.S. government and defense supply chains.
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