PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4400ANetwork,hybrid Circuit

Lucent Technologies Inc Corporate Headquarters · NSN 5915-01-437-6552 · FSC 5915 · No Item Name Available
Verified by PartsTable
NSN 5915-01-437-6552 — this item is cataloged by the U.S. Government under National Stock Number 5915-01-437-6552. Primary manufacturer part number: 4400A.
Features
  • Network,hybrid Circuit — FSC 5915
  • Reference Data and Literature: TABLE 4-5, TI-6540.3, PG 4-13
  • Functional Description: NETWORK REPEATER UP CONVERTER
  • 4 verified cross-references
  • Primary manufacturer: Lucent Technologies Inc Corporate Headquarters
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Network,hybrid Circuit, cataloged under National Stock Number 5915-01-437-6552, is classified within Federal Supply Class 5915 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lucent Technologies Inc Corporate Headquarters. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5915-01-437-6552
Primary Part Number4400A
Item NameNetwork,hybrid Circuit
FSC / FSG5915 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Reference Data and LiteratureTABLE 4-5, TI-6540.3, PG 4-13
Functional DescriptionNETWORK REPEATER UP CONVERTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5960-00-556-1759 INTERCHANGEABLE
Electron Tube
4940-00-586-09834175 INTERCHANGEABLE
Container,measuring
Little Giant Pump Co
6625-01-237-46944400A INTERCHANGEABLE
Generator,signal
Krohn-Hite Corp
6625-01-476-67554400A-L INTERCHANGEABLE
Meter,special Scale
Boonton Electronics Corporation Div Boonton Electronics
Cross-Reference Index
Part NumberManufacturer
4400A Lucent Technologies Inc Corporate Headquarters (USA)
4400A American Telephone and Telegraph Co (USA)
4400A/C Lucent Technologies Inc Corporate Headquarters (USA)
4400A Lucent Technologies Inc Dba Federal Marketing Group (USA)
Related Parts
5960-00-556-1759INTERCHANGEABLE
ELECTRON TUBE
4940-00-586-0983INTERCHANGEABLE
CONTAINER,MEASURING
4175
6625-01-237-4694INTERCHANGEABLE
GENERATOR,SIGNAL
4400A
6625-01-476-6755INTERCHANGEABLE
METER,SPECIAL SCALE
4400A-L

Frequently Asked Questions

What is NSN 5915-01-437-6552?

NSN 5915-01-437-6552 is a Network,hybrid Circuit, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5915 (No Item Name Available). Status: active.

What are the part numbers for NSN 5915-01-437-6552?

NSN 5915-01-437-6552 has 4 cross-referenced part numbers: 4400A (Lucent Technologies Inc Corporate Headquarters), 4400A (American Telephone and Telegraph Co), 4400A/C (Lucent Technologies Inc Corporate Headquarters), 4400A (Lucent Technologies Inc Dba Federal Marketing Group).

What NSN replaces 5915-01-437-6552?

There are 4 known substitutes for 5915-01-437-6552: 5960-00-556-1759, 4940-00-586-0983, 6625-01-237-4694 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4400A?

Key specifications for 4400A: Reference Data and Literature: TABLE 4-5, TI-6540.3, PG 4-13; End Item Identification: RADIO COMMUNICATIONS LINK (RCL); Functional Description: NETWORK REPEATER UP CONVERTER. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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