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Technical Data Sheet
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B4R ✓ 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 LEAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR, conductor_form: STRANDED LOCATION NOT OTHERWISE SPECIFIED, voltage_rating: 7500.0 AC MAXIMUM RATED WORKING VOLTAGE SINGLE CONDUCTOR, termination_type: CONNECTOR PLUG BOTH ENDS SINGLE CONDUCTOR, surface_treatment: TIN CORE CONDUCTOR THIRD GROUP, lead_overall_length: 6.969 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-410-6987, 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
B4R
NSN: 5340-00-410-6987
FSC: 5340
CAGE: 23060 — OVERHEAD DOOR CORP INDIANA DIV (USA)
SPECIFICATIONS
materialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
conductor_formSTRANDED LOCATION NOT OTHERWISE SPECIFIED
voltage_rating7500.0 AC MAXIMUM RATED WORKING VOLTAGE SINGLE CONDUCTOR
termination_typeCONNECTOR PLUG BOTH ENDS SINGLE CONDUCTOR
surface_treatmentTIN CORE CONDUCTOR THIRD GROUP
lead_overall_length6.969 INCHES NOMINAL IN
fsc_application_dataSHOP EQUIPMENT,INSTRUMENT AND FIRE CONTROL SYSTEM REPAIR
round_conductor_size18 AWG SINGLE CONDUCTOR
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor36 SINGLE CONDUCTOR
strand_quantity_per_conductor65 SINGLE CONDUCTOR
cross_section_outside_diameter0.140 INCHES NOMINAL IN
NSN5340-00-410-6987
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B4R 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 3
B-4-2Interchangeable
interchangeable cross-reference
interchangeable
7907491Interchangeable
interchangeable cross-reference
interchangeable
B4RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B4R?
B4R is a LEAD,ELECTRICAL.
What parts can replace B4R?
There are 3 known substitutes for B4R: B-4-2, 7907491, B4R. Substitute compatibility should be verified for your specific system.
What is the NSN for B4R?
B4R is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-410-6987. 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