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Technical Data Sheet
7B5425 ✓ 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 SEAL,PLAIN ENCASED 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 5330-00-291-1658, 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
7B5425
NSN: 5330-00-291-1658
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
Part Number7B5425
NSN5330-00-291-1658
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7B5425 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 6
35-147Interchangeable
interchangeable cross-reference
interchangeable
C159Interchangeable
interchangeable cross-reference
interchangeable
349BMZ216Interchangeable
interchangeable cross-reference
interchangeable
LU4-135AInterchangeable
interchangeable cross-reference
interchangeable
4810PL1856257Interchangeable
interchangeable cross-reference
interchangeable
5330-079001-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7B5425?
7B5425 is a SEAL,PLAIN ENCASED.
What parts can replace 7B5425?
There are 6 known substitutes for 7B5425: 35-147, C159, 349BMZ216 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7B5425?
7B5425 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-1658. This indicates validated use in U.S. government and defense supply chains.
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