PartsTable
Technical Data Sheet
5KK663 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The LATCH,THUMB is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-355-5522, 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
5KK663
NSN: 5340-01-355-5522
FSC: 5340
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
Part Number5KK663
NSN5340-01-355-5522
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5KK663 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
0-10364Interchangeable
interchangeable cross-reference
interchangeable
K2067Interchangeable
interchangeable cross-reference
interchangeable
10364Interchangeable
interchangeable cross-reference
interchangeable
429LXInterchangeable
interchangeable cross-reference
interchangeable
SM-B-187092Interchangeable
interchangeable cross-reference
interchangeable
37800Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5KK663?
5KK663 is a LATCH,THUMB.
What parts can replace 5KK663?
There are 15 known substitutes for 5KK663: 0-10364, K2067, 10364 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5KK663?
5KK663 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-355-5522. This indicates validated use in U.S. government and defense supply chains.
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