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PartsTable / COMPONENT / SM-B-187542
SM-B-187542 ✓ 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 CLIP,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018, material_document_and_classification: AISI C1018 ASSN STD SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-657-9958, 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-187542
NSN: 5340-00-657-9958
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL COMP 1018
material_document_and_classificationAISI C1018 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-657-9958
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-B-187542 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 DOCUMENT AND CLASSIFICATION: AISI C1018 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 1018
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI C1018 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 1018
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2ME361P4Interchangeable
interchangeable cross-reference
interchangeable
ABT11643Interchangeable
interchangeable cross-reference
interchangeable
T-11643Interchangeable
interchangeable cross-reference
interchangeable
11643Interchangeable
interchangeable cross-reference
interchangeable
M11643Interchangeable
interchangeable cross-reference
interchangeable
603-10-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-187542?
SM-B-187542 is a CLIP,RETAINING.
What parts can replace SM-B-187542?
There are 13 known substitutes for SM-B-187542: 2ME361P4, ABT11643, T-11643 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-187542?
SM-B-187542 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-657-9958. 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