PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TN777Network,hybrid Circuit

Avaya Inc Dba Avaya Government Solutions · NSN 5915-01-431-4256 · FSC 5915 · No Item Name Available
Verified by PartsTable
NSN 5915-01-431-4256 — this item is cataloged by the U.S. Government under National Stock Number 5915-01-431-4256. Primary manufacturer part number: TN777.
Features
  • Network,hybrid Circuit — FSC 5915
  • 15 verified cross-references
  • Primary manufacturer: Avaya Inc Dba Avaya Government Solutions
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Network,hybrid Circuit, cataloged under National Stock Number 5915-01-431-4256, 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 Avaya Inc Dba Avaya Government Solutions. This item has 15 commercial cross-references from 7 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
NSN5915-01-431-4256
Primary Part NumberTN777
Item NameNetwork,hybrid Circuit
FSC / FSG5915 / 59 — No Item Name Available
ManufacturerAvaya Inc Dba Avaya Government Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5998-01-363-6995 INTERCHANGEABLE
Circuit Card Assembly
5895-01-431-4249TN748C INTERCHANGEABLE
Detector,radio Frequency
Avaya Federal Solutions, Inc
6130-01-434-3696WP91153.L-3 INTERCHANGEABLE
Power Supply
Vology, Inc. Dba Network Liquidators
5895-01-442-997263153 INTERCHANGEABLE
Interface Unit,communication Equ
Avaya Federal Solutions, Inc
Cross-Reference Index
Part NumberManufacturer
TN777B Avaya Inc Dba Avaya Government Solutions (USA)
J58890L-1 TABLE CP American Telephone and Telegraph Co (USA)
TN777B Lucent Technologies Inc Advanced Technology Systems (USA)
103557302 Lucent Technologies Inc Corporate Headquarters (USA)
TN777B Alcatel-Lucent Usa Inc. (USA)
TN777B American Telephone and Telegraph Co (USA)
TN777 PRIMARY Avaya Inc Dba Avaya Government Solutions (USA)
MP200208 LINE-66 Lucent Technologies Inc Advanced Technology Systems (USA)
TN777 Lucent Technologies Inc Corporate Headquarters (USA)
106577422 Lucent Technologies Inc Advanced Technology Systems (USA)
TN777B Dynalec Corporation (USA)
SB-010013-PL P/O FIND 2 Lucent Technologies Inc Advanced Technology Systems (USA)
MP200038 MK2 LN 65 Lucent Technologies Inc Advanced Technology Systems (USA)
106577422 Avaya Inc Dba Avaya Government Solutions (USA)
TN777B Lgs Innovations Llc (USA)
Related Parts
5998-01-363-6995INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5895-01-431-4249INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
TN748C
6130-01-434-3696INTERCHANGEABLE
POWER SUPPLY
WP91153.L-3
5895-01-442-9972INTERCHANGEABLE
INTERFACE UNIT,COMMUNICATION EQU
63153

Frequently Asked Questions

What is NSN 5915-01-431-4256?

NSN 5915-01-431-4256 is a Network,hybrid Circuit, manufactured by Avaya Inc Dba Avaya Government Solutions, classified under FSC 5915 (No Item Name Available). Status: active.

What are the part numbers for NSN 5915-01-431-4256?

NSN 5915-01-431-4256 has 15 cross-referenced part numbers: TN777B (Avaya Inc Dba Avaya Government Solutions), J58890L-1 TABLE CP (American Telephone and Telegraph Co), TN777B (Lucent Technologies Inc Advanced Technology Systems), 103557302 (Lucent Technologies Inc Corporate Headquarters), TN777B (Alcatel-Lucent Usa Inc.) and 10 more.

What NSN replaces 5915-01-431-4256?

There are 4 known substitutes for 5915-01-431-4256: 5998-01-363-6995, 5895-01-431-4249, 6130-01-434-3696 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TN777?

Key specifications for TN777: End Item Identification: SHIPS SERVICE TELEPHONE NS6121-289-1-306. 1 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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