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Technical Data Sheet
U540329 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-374-5997, 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
U540329
NSN: 5340-01-374-5997
FSC: 5340
CAGE: 78943 — TRIUMPH THERMAL SYSTEMS, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
NSN5340-01-374-5997
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: U540329 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
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1048Interchangeable
interchangeable cross-reference
interchangeable
76-30Interchangeable
interchangeable cross-reference
interchangeable
RES30Interchangeable
interchangeable cross-reference
interchangeable
B107.2Interchangeable
interchangeable cross-reference
interchangeable
B107.2 TY1CL1Interchangeable
interchangeable cross-reference
interchangeable
173Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U540329?
U540329 is a CLAMP,LOOP.
What parts can replace U540329?
There are 14 known substitutes for U540329: 1048, 76-30, RES30 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U540329?
U540329 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-374-5997. This indicates validated use in U.S. government and defense supply chains.
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