PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21254Retainer,electrical Switch

Mason Electric Co. Dba Mason Controls · NSN 5930-00-392-0949 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-392-0949 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-392-0949. Primary manufacturer part number: 21254.
Features
  • Retainer,electrical Switch — FSC 5930
  • FSC Application Data: ACFT ACCESSORIES AND COMPONENTS
  • 3 verified cross-references
  • Primary manufacturer: Mason Electric Co. Dba Mason Controls
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Retainer,electrical Switch, cataloged under National Stock Number 5930-00-392-0949, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-392-0949
Primary Part Number21254
Item NameRetainer,electrical Switch
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
FSC Application DataACFT ACCESSORIES AND COMPONENTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4720-00-080-3875 INTERCHANGEABLE
Hose,preformed
5950-00-155-948212Z13002-6 INTERCHANGEABLE
Reactor
Nurnberg Thermometer Co Inc
5110-00-243-2016C24593 INTERCHANGEABLE
Reamer,hand
Kennametal Inc. Div Kennametal Industrial Products Group
5998-01-097-850121254G INTERCHANGEABLE
Circuit Card Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
6665-01-104-725421254 INTERCHANGEABLE
Radiac Set
Mirion Technologies (canberra), Inc.
5815-01-171-1605 INTERCHANGEABLE
Switch,bilateral
6145-01-372-570921254 INTERCHANGEABLE
Cable,special Purpose,electrical
Electroweave, Inc
Cross-Reference Index
Part NumberManufacturer
21254 Amphenol Corp Div Amphenol Aerospace Operations (USA)
21254 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
21254 Unison Industries Llc (USA)
Related Parts
4720-00-080-3875INTERCHANGEABLE
HOSE,PREFORMED
5950-00-155-9482INTERCHANGEABLE
REACTOR
12Z13002-6
5110-00-243-2016INTERCHANGEABLE
REAMER,HAND
C24593
5998-01-097-8501INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21254G
6665-01-104-7254INTERCHANGEABLE
RADIAC SET
21254
5815-01-171-1605INTERCHANGEABLE
SWITCH,BILATERAL
6145-01-372-5709INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
21254

Frequently Asked Questions

What is NSN 5930-00-392-0949?

NSN 5930-00-392-0949 is a Retainer,electrical Switch, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-392-0949?

NSN 5930-00-392-0949 has 3 cross-referenced part numbers: 21254 (Amphenol Corp Div Amphenol Aerospace Operations), 21254 (Mason Electric Co. Dba Mason Controls), 21254 (Unison Industries Llc).

What NSN replaces 5930-00-392-0949?

There are 7 known substitutes for 5930-00-392-0949: 4720-00-080-3875, 5950-00-155-9482, 5110-00-243-2016 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21254?

Key specifications for 21254: Special Features: STEEL,QQ-S-636,CADMIUM PLATED,QQ-P-416,TYPE 1,CLAS A; End Item Identification: HELICOPTER,MODEL HH-1H; FSC Application Data: ACFT ACCESSORIES AND COMPONENTS. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com