PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

742-1Adapter,test

General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations · NSN 4940-01-186-2860 · FSC 4940 · No Item Name Available
Verified by PartsTable
NSN 4940-01-186-2860 — this item is cataloged by the U.S. Government under National Stock Number 4940-01-186-2860. Primary manufacturer part number: 742-1.
Features
  • Adapter,test — FSC 4940
  • Functional Description: JUNCTION BOX WILL PROVIDE SWITCHES,CIRCUITRY,INTERFACE CABLES,AND TEST POINTS FOR PERFORMING VOLTAGE AND CONTINUITY TESTING OF THE EJECTOR RACK
  • Test Item Connection Method: CABLE
  • DC Voltage Rating: 18.0 VOLTS NOMINAL AND 28.0 VOLTS NOMINAL
  • 2 verified cross-references
  • Primary manufacturer: General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Adapter,test, cataloged under National Stock Number 4940-01-186-2860, is classified within Federal Supply Class 4940 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4940-01-186-2860
Primary Part Number742-1
Item NameAdapter,test
FSC / FSG4940 / 49 — No Item Name Available
ManufacturerGeneral Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
StatusACTIVE
Functional DescriptionJUNCTION BOX WILL PROVIDE SWITCHES,CIRCUITRY,INTERFACE CABLES,AND TEST POINTS FOR PERFORMING VOLTAGE AND CONTINUITY TESTING OF THE EJECTOR RACK
Test Item Connection MethodCABLE
DC Voltage Rating18.0 VOLTS NOMINAL AND 28.0 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5815-00-125-48737421 INTERCHANGEABLE
Bar,t,teletypewriter
Telemechanics Inc
6685-00-223-6819ML74A INTERCHANGEABLE
Rotor,psychrometer
Kahl Scientific Instrument Corporation
5930-00-239-04167421 INTERCHANGEABLE
Switch,push-Pull
Cole Hersee Company
5305-00-484-69147421 INTERCHANGEABLE
Screw,machine
Triumph Engine Control Systems Llc
2520-00-972-2001 INTERCHANGEABLE
Parts Kit,seal and
5962-01-018-0116515C2008-24-020 INTERCHANGEABLE
Microcircuit,digital
Ge Aviation Systems Llc Dba Ge Aviation Div Information Systems - Germantown
5962-01-039-5037 INTERCHANGEABLE
Microcircuit,digital
1005-01-225-38197421 INTERCHANGEABLE
Swivel,sling,small Arms
O F Mossberg & Sons Inc
Cross-Reference Index
Part NumberManufacturer
742-1 PRIMARY General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations (USA)
R-TBD-957 The Boeing Company Div Legacy Am&m (USA)
Related Parts
5815-00-125-4873INTERCHANGEABLE
BAR,T,TELETYPEWRITER
7421
6685-00-223-6819INTERCHANGEABLE
ROTOR,PSYCHROMETER
ML74A
5930-00-239-0416INTERCHANGEABLE
SWITCH,PUSH-PULL
7421
5305-00-484-6914INTERCHANGEABLE
SCREW,MACHINE
7421
2520-00-972-2001INTERCHANGEABLE
PARTS KIT,SEAL AND
5962-01-018-0116INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
515C2008-24-020
5962-01-039-5037INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1005-01-225-3819INTERCHANGEABLE
SWIVEL,SLING,SMALL ARMS
7421

Frequently Asked Questions

What is NSN 4940-01-186-2860?

NSN 4940-01-186-2860 is a Adapter,test, manufactured by General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations, classified under FSC 4940 (No Item Name Available). Status: active.

What are the part numbers for NSN 4940-01-186-2860?

NSN 4940-01-186-2860 has 2 cross-referenced part numbers: 742-1 (General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations), R-TBD-957 (The Boeing Company Div Legacy Am&m).

What NSN replaces 4940-01-186-2860?

There are 8 known substitutes for 4940-01-186-2860: 5815-00-125-4873, 6685-00-223-6819, 5930-00-239-0416 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 742-1?

Key specifications for 742-1: Functional Description: JUNCTION BOX WILL PROVIDE SWITCHES,CIRCUITRY,INTERFACE CABLES,AND TEST POINTS FOR PERFORMING VOLTAGE AND CONTINUITY TESTING OF THE EJECTOR RACK; End Item Identification: B-1B ACFT; Test Item Connection Method: CABLE; DC Voltage Rating: 18.0 VOLTS NOMINAL AND 28.0 VOLTS NOMINAL. 4 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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