PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

143TOOLAdjuster,spring,communications E

Telemechanics Inc · NSN 5120-00-230-7864 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-230-7864 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-230-7864. Primary manufacturer part number: 143TOOL.
Features
  • Adjuster,spring,communications E — FSC 5120
  • 10 verified cross-references
  • Primary manufacturer: Telemechanics Inc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Adjuster,spring,communications E, cataloged under National Stock Number 5120-00-230-7864, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Telemechanics Inc. This item has 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdjuster,spring,communications E
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersAmerican Telephone and Telegraph Co (CAGE 64959); At and T Corp (CAGE 70408); Lucent Technologies Inc Dba Federal Marketing Group (CAGE 06KW9); Jonard Industries Corporation Dba Jonard Tools (CAGE 27596); Lucent Technologies Inc Corporate Headquarters (CAGE 3B4M0)
Technical Specifications
ParameterValue
NSN5120-00-230-7864
Primary Part Number143TOOL
Item NameAdjuster,spring,communications E
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2805-00-361-7443 INTERCHANGEABLE
Ring Set,piston
5950-00-370-23750026-2104 INTERCHANGEABLE
Reactor
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
5320-01-246-183278-64 INTERCHANGEABLE
Rivet,solid
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5915-01-379-9852 INTERCHANGEABLE
Filter,radio Frequency Interfere
Cross-Reference Index
Part NumberManufacturer
25ADJUSTER American Telephone and Telegraph Co (USA)
25ADJUSTER At and T Corp (USA)
143T00L Lucent Technologies Inc Dba Federal Marketing Group (USA)
7864 Jonard Industries Corporation Dba Jonard Tools (USA)
143 American Telephone and Telegraph Co (USA)
143T00L Lucent Technologies Inc Corporate Headquarters (USA)
143 At and T Corp (USA)
143T00L American Telephone and Telegraph Co (USA)
143TOOL PRIMARY Telemechanics Inc (USA)
143T00L At and T Corp (USA)
Related Parts
2805-00-361-7443INTERCHANGEABLE
RING SET,PISTON
5950-00-370-2375INTERCHANGEABLE
REACTOR
0026-2104
5320-01-246-1832INTERCHANGEABLE
RIVET,SOLID
78-64
5915-01-379-9852INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE

Frequently Asked Questions

What is NSN 5120-00-230-7864?

NSN 5120-00-230-7864 is a Adjuster,spring,communications E, manufactured by Telemechanics Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-230-7864?

NSN 5120-00-230-7864 has 10 cross-referenced part numbers: 25ADJUSTER (American Telephone and Telegraph Co), 25ADJUSTER (At and T Corp), 143T00L (Lucent Technologies Inc Dba Federal Marketing Group), 7864 (Jonard Industries Corporation Dba Jonard Tools), 143 (American Telephone and Telegraph Co) and 5 more.

What NSN replaces 5120-00-230-7864?

There are 4 known substitutes for 5120-00-230-7864: 2805-00-361-7443, 5950-00-370-2375, 5320-01-246-1832 and 1 more. Verify interchangeability with system specifications before substitution.

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