PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

540AJack,telephone

American Telephone and Telegraph Co · NSN 5935-01-196-1060 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-196-1060 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-196-1060. Primary manufacturer part number: 540A.
Features
  • Jack,telephone — FSC 5935
  • Bushing Accommodation Hole Shape: ROUND
  • Accommodated Finger Type: TEST PROD SINGLE FINGER
  • Mounting Bushing Diameter: 0.450 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 1 BUSHING AND 1 UNTHREADED HOLE(S)
  • Mounting Hole Diameter: 0.157 INCHES NOMINAL IN
  • Mounting Bushing Length: 0.578 INCHES NOMINAL IN
  • Electrical Insulation Feature: INSULATED COMPLETELY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Jack,telephone, cataloged under National Stock Number 5935-01-196-1060, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is American Telephone and Telegraph Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 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: Cancelled.

Technical Specifications
ParameterValue
NSN5935-01-196-1060
Primary Part Number540A
Item NameJack,telephone
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerAmerican Telephone and Telegraph Co
StatusCANCELLED
Bushing Accommodation Hole ShapeROUND
Accommodated Finger TypeTEST PROD SINGLE FINGER
Mounting Bushing Diameter0.450 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 BUSHING AND 1 UNTHREADED HOLE(S)
Mounting Hole Diameter0.157 INCHES NOMINAL IN
Mounting Bushing Length0.578 INCHES NOMINAL IN
Electrical Insulation FeatureINSULATED COMPLETELY
Body StyleCOAXIAL HOLE OR SLOT MOUNTED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4940-00-139-3658 INTERCHANGEABLE
Detector,leak
5985-00-519-3779 INTERCHANGEABLE
Converter,frequency,electronic
5930-01-172-6437540A-D-3 INTERCHANGEABLE
Switch,pressure
Henry G Dietz Co Inc
6660-01-198-0904540A INTERCHANGEABLE
Mounting,bracket
Reactel, Inc. Dba Reactel Inc
Cross-Reference Index
Part NumberManufacturer
540A American Telephone and Telegraph Co (USA)
G645131 American Telephone and Telegraph Co (USA)
540A JACK Lucent Technologies Inc Corporate Headquarters (USA)
G645131 Lucent Technologies Inc Dba Federal Marketing Group (USA)
G645131 Lucent Technologies Inc Corporate Headquarters (USA)
540A JACK American Telephone and Telegraph Co (USA)
540A JACK Lucent Technologies Inc Dba Federal Marketing Group (USA)
Related Parts
4940-00-139-3658INTERCHANGEABLE
DETECTOR,LEAK
5985-00-519-3779INTERCHANGEABLE
CONVERTER,FREQUENCY,ELECTRONIC
5930-01-172-6437INTERCHANGEABLE
SWITCH,PRESSURE
540A-D-3
6660-01-198-0904INTERCHANGEABLE
MOUNTING,BRACKET
540A

Frequently Asked Questions

What is NSN 5935-01-196-1060?

NSN 5935-01-196-1060 is a Jack,telephone, manufactured by American Telephone and Telegraph Co, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-01-196-1060?

NSN 5935-01-196-1060 has 7 cross-referenced part numbers: 540A (American Telephone and Telegraph Co), G645131 (American Telephone and Telegraph Co), 540A JACK (Lucent Technologies Inc Corporate Headquarters), G645131 (Lucent Technologies Inc Dba Federal Marketing Group), G645131 (Lucent Technologies Inc Corporate Headquarters) and 2 more.

What NSN replaces 5935-01-196-1060?

There are 4 known substitutes for 5935-01-196-1060: 4940-00-139-3658, 5985-00-519-3779, 5930-01-172-6437 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 540A?

Key specifications for 540A: Bushing Accommodation Hole Shape: ROUND; Accommodated Finger Type: TEST PROD SINGLE FINGER; End Item Identification: AN/SRC-20; Mounting Bushing Diameter: 0.450 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-01-196-1060 still in active supply?

NSN 5935-01-196-1060 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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