PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74121Bell Crank

Telemechanics Inc · NSN 3040-00-125-8233 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-125-8233 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-125-8233. Primary manufacturer part number: 74121.
Features
  • Bell Crank — FSC 3040
  • FSC Application Data: TELEPHONE AND TELEGRAPH EQUIPMENT
  • 3 verified cross-references
  • Primary manufacturer: Telemechanics Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bell Crank, cataloged under National Stock Number 3040-00-125-8233, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-125-8233
Primary Part Number74121
Item NameBell Crank
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
FSC Application DataTELEPHONE AND TELEGRAPH EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-369-521174-1-2-1 INTERCHANGEABLE
Terminal Board
Celtech Corporation Div Use CAGE 65552 for All Orders
5962-00-369-7706 INTERCHANGEABLE
Microcircuit,digital
5962-01-063-275436188500 INTERCHANGEABLE
Microcircuit,digital
Syntegra / Usa/ Inc Computer Parts and Supplies ARH205
Cross-Reference Index
Part NumberManufacturer
74121 PRIMARY Telemechanics Inc (USA)
74121 American Telephone and Telegraph Co (USA)
74121 At and T Corp (USA)
Related Parts
5940-00-369-5211INTERCHANGEABLE
TERMINAL BOARD
74-1-2-1
5962-00-369-7706INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-063-2754INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
36188500

Frequently Asked Questions

What is NSN 3040-00-125-8233?

NSN 3040-00-125-8233 is a Bell Crank, manufactured by Telemechanics Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-125-8233?

NSN 3040-00-125-8233 has 3 cross-referenced part numbers: 74121 (Telemechanics Inc), 74121 (American Telephone and Telegraph Co), 74121 (At and T Corp).

What NSN replaces 3040-00-125-8233?

There are 3 known substitutes for 3040-00-125-8233: 5940-00-369-5211, 5962-00-369-7706, 5962-01-063-2754. Verify interchangeability with system specifications before substitution.

What are the specifications of 74121?

Key specifications for 74121: FSC Application Data: TELEPHONE AND TELEGRAPH EQUIPMENT. 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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