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Technical Data Sheet
PartsTable / MRO / B91-044301
B91-044301 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 NETWORK,HYBRID CIRCUIT is a the manufacturer industrial component. Key specifications include circuit_type: VOICE FREQUENCY, overall_depth: 6.000 INCHES NOMINAL IN, overall_width: 1.500 INCHES NOMINAL IN, overall_height: 5.600 INCHES NOMINAL IN, fsc_application_data: TELEPHONE AND TELEGRAPH EQUIPMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-01-036-8143, 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
MRO→ MRO_GENERAL→ B91-044301
NSN: 5915-01-036-8143
FSC: 5915
CAGE: 74861 — CHARLES INDUSTRIES, LLC DIV TELECOM (USA)
SPECIFICATIONS
circuit_typeVOICE FREQUENCY
overall_depth6.000 INCHES NOMINAL IN
overall_width1.500 INCHES NOMINAL IN
overall_height5.600 INCHES NOMINAL IN
fsc_application_dataTELEPHONE AND TELEGRAPH EQUIPMENT
two-wire_circuit_quantity1
NSN5915-01-036-8143
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available NETWORK,HYBRID CIRCUIT TITLE COMPONENT PN B91-044301 MFR NETWORK,HYBRID CIRCUIT
KEY FEATURES
•
FSC APPLICATION DATA: TELEPHONE AND TELEGRAPH EQUIPMENT
•
TWO-WIRE CIRCUIT QUANTITY: 1
•
CIRCUIT TYPE: VOICE FREQUENCY
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH1.500 INCHES NOMINAL IN
FSC APPLICATION DATATELEPHONE AND TELEGRAPH EQUIPMENT
TWO-WIRE CIRCUIT QUANTITY1
OVERALL DEPTH6.000 INCHES NOMINAL IN
OVERALL HEIGHT5.600 INCHES NOMINAL IN
CIRCUIT TYPEVOICE FREQUENCY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
403SP-400-001Interchangeable
interchangeable cross-reference
interchangeable
443-01Interchangeable
interchangeable cross-reference
interchangeable
392192Interchangeable
interchangeable cross-reference
interchangeable
25830Interchangeable
interchangeable cross-reference
interchangeable
00392192Interchangeable
interchangeable cross-reference
interchangeable
99116582Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B91-044301?
B91-044301 is a NETWORK,HYBRID CIRCUIT. It is classified as a MRO (MRO_GENERAL).
What parts can replace B91-044301?
There are 19 known substitutes for B91-044301: 403SP-400-001, 443-01, 392192 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B91-044301?
B91-044301 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-01-036-8143. 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