PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42-3-4-3Adapter

Celtech Corporation Div Use CAGE 65552 for All Orders · NSN 4920-00-740-8739 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-740-8739 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-740-8739. Primary manufacturer part number: 42-3-4-3.
Features
  • Adapter — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Celtech Corporation Div Use CAGE 65552 for All Orders
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Adapter, cataloged under National Stock Number 4920-00-740-8739, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Celtech Corporation Div Use CAGE 65552 for All Orders. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersCeltech Corporation Div Use CAGE 65552 for All Orders (CAGE 04984)
Technical Specifications
ParameterValue
NSN4920-00-740-8739
Primary Part Number42-3-4-3
Item NameAdapter
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerCeltech Corporation Div Use CAGE 65552 for All Orders
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-241-95244022682-0701 INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company Dba Raytheon Co
5950-01-225-8779SMC3545 INTERCHANGEABLE
Transformer,power
Shafer Magnetic Components
6685-01-641-9844039378 INTERCHANGEABLE
Regulator,temperature
Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
42-3-4-3 PRIMARY Celtech Corporation Div Use CAGE 65552 for All Orders (USA)
Related Parts
5950-00-241-9524INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4022682-0701
5950-01-225-8779INTERCHANGEABLE
TRANSFORMER,POWER
SMC3545
6685-01-641-9844INTERCHANGEABLE
REGULATOR,TEMPERATURE
039378

Frequently Asked Questions

What is NSN 4920-00-740-8739?

NSN 4920-00-740-8739 is a Adapter, manufactured by Celtech Corporation Div Use CAGE 65552 for All Orders, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-740-8739?

NSN 4920-00-740-8739 has 1 cross-referenced part number: 42-3-4-3 (Celtech Corporation Div Use CAGE 65552 for All Orders).

What NSN replaces 4920-00-740-8739?

There are 3 known substitutes for 4920-00-740-8739: 5950-00-241-9524, 5950-01-225-8779, 6685-01-641-9844. Verify interchangeability with system specifications before substitution.

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