PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A506Flash Tube and Sock

Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company · NSN 4920-01-147-3741 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-147-3741 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-147-3741. Primary manufacturer part number: A506.
Features
  • Flash Tube and Sock — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Flash Tube and Sock, cataloged under National Stock Number 4920-01-147-3741, 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 Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFlash Tube and Sock
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersWhelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company (CAGE 10402)
Technical Specifications
ParameterValue
NSN4920-01-147-3741
Primary Part NumberA506
Item NameFlash Tube and Sock
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerWhelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4610-00-132-5453 INTERCHANGEABLE
Hypochlorination Unit,water Puri
2805-00-391-4157A506 INTERCHANGEABLE
Camshaft,engine
Essex Industries, Inc. Dba Essex Industries
5955-00-524-0329A506 INTERCHANGEABLE
Oscillator,noncrystal Controlled
Cae Usa Inc.
3110-00-823-9265SSRI-3332ZA1202RA5P24LY206U INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Precision Division
5305-01-320-417712576932 INTERCHANGEABLE
Screw,machine
Army, United States Department of the Dba Watervliet Arsenal Div Business Development
1560-01-592-9934A506 INTERCHANGEABLE
Modification Kit,airframe
L-3 Communications Integrated Systems L.p. Dba Integrated Systems-Special Support Programs Division Div Sspd: Advanced Technical
5340-01-647-8024506-2NS INTERCHANGEABLE
Mount,resilient,utility
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
Cross-Reference Index
Part NumberManufacturer
A506 PRIMARY Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company (USA)
Related Parts
4610-00-132-5453INTERCHANGEABLE
HYPOCHLORINATION UNIT,WATER PURI
2805-00-391-4157INTERCHANGEABLE
CAMSHAFT,ENGINE
A506
5955-00-524-0329INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
A506
3110-00-823-9265INTERCHANGEABLE
BEARING,BALL,ANNULAR
SSRI-3332ZA1202RA5P24LY206U
5305-01-320-4177INTERCHANGEABLE
SCREW,MACHINE
12576932
1560-01-592-9934INTERCHANGEABLE
MODIFICATION KIT,AIRFRAME
A506
5340-01-647-8024INTERCHANGEABLE
MOUNT,RESILIENT,UTILITY
506-2NS

Frequently Asked Questions

What is NSN 4920-01-147-3741?

NSN 4920-01-147-3741 is a Flash Tube and Sock, manufactured by Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-147-3741?

NSN 4920-01-147-3741 has 1 cross-referenced part number: A506 (Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company).

What NSN replaces 4920-01-147-3741?

There are 7 known substitutes for 4920-01-147-3741: 4610-00-132-5453, 2805-00-391-4157, 5955-00-524-0329 and 4 more. Verify interchangeability with system specifications before substitution.

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