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Technical Data Sheet
PartsTable / COMPONENT / SM-B-148645
SM-B-148645 ✓ 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 PLATE,MOUNTING 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 5340-00-393-1926, 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
SM-B-148645
NSN: 5340-00-393-1926
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
Part NumberSM-B-148645
NSN5340-00-393-1926
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-B-148645 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
2410 1-1/8Interchangeable
interchangeable cross-reference
interchangeable
402Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
PA3171Interchangeable
interchangeable cross-reference
interchangeable
53172Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-148645?
SM-B-148645 is a PLATE,MOUNTING.
What parts can replace SM-B-148645?
There are 6 known substitutes for SM-B-148645: 2410 1-1/8, 402, QQ-A-200/3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-148645?
SM-B-148645 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-393-1926. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026