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B7891 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HORN,SIGNAL is a the manufacturer industrial component. Key specifications include material: STEEL HOUSING, hole_diameter: 0.219 INCHES NOMINAL IN, overall_width: 1.562 INCHES NOMINAL IN, terminal_type: STUD, overall_height: 5.156 INCHES NOMINAL IN, overall_length: 5.156 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 6350-00-237-7338, 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
B7891
NSN: 6350-00-237-7338
FSC: 6350
CAGE: 56118 — SPARTON CORP (USA)
SPECIFICATIONS
materialSTEEL HOUSING
hole_diameter0.219 INCHES NOMINAL IN
overall_width1.562 INCHES NOMINAL IN
terminal_typeSTUD
overall_height5.156 INCHES NOMINAL IN
overall_length5.156 INCHES NOMINAL IN
mounting_bracketNOT PROVIDED
enclosure_featureWATERTIGHT
terminal_quantity2
sound_projector_typeGRILL
sound_projector_quantity1
loudness_level_in_decibels100 DB,3 FT FT
NSN6350-00-237-7338
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HORN,SIGNAL TITLE COMPONENT PN B7891 MFR HORN,SIGNAL
KEY FEATURES
•
ENCLOSURE FEATURE: WATERTIGHT
•
TERMINAL THREAD SIZE AND SERIES/TYPE DESIGNATOR: 8-32 UNIFIED NATIONAL COARSE (UNC)
•
MOUNTING HOLE/STUD QUANTITY: 2
•
LOUDNESS LEVEL IN DECIBELS: 100 DB,3 FT FT
•
SOUND PROJECTOR QUANTITY: 1
•
MOUNTING BRACKET: NOT PROVIDED
TECHNICAL CHARACTERISTICS (FLIS)
ENCLOSURE FEATUREWATERTIGHT
OVERALL HEIGHT5.156 INCHES NOMINAL IN
OVERALL WIDTH1.562 INCHES NOMINAL IN
TERMINAL THREAD SIZE AND SERIES/TYPE DESIGNATOR8-32 UNIFIED NATIONAL COARSE (UNC)
MOUNTING HOLE/STUD QUANTITY2
LOUDNESS LEVEL IN DECIBELS100 DB,3 FT FT
SOUND PROJECTOR QUANTITY1
MOUNTING BRACKETNOT PROVIDED
TERMINAL TYPESTUD
HOLE DIAMETER0.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
D834Interchangeable
interchangeable cross-reference
interchangeable
CB2024-08Interchangeable
interchangeable cross-reference
interchangeable
MS35771-127Interchangeable
interchangeable cross-reference
interchangeable
67035Interchangeable
interchangeable cross-reference
interchangeable
321841Interchangeable
interchangeable cross-reference
interchangeable
32184Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B7891?
B7891 is a HORN,SIGNAL.
What parts can replace B7891?
There are 11 known substitutes for B7891: D834, CB2024-08, MS35771-127 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B7891?
B7891 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6350-00-237-7338. 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