PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100404Retainer,cover

West Tech Systems Inc Dba Western Technical Associates · NSN 5340-01-187-1042 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-187-1042 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-187-1042. Primary manufacturer part number: 100404.
Features
  • Retainer,cover — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: West Tech Systems Inc Dba Western Technical Associates
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Retainer,cover, cataloged under National Stock Number 5340-01-187-1042, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is West Tech Systems Inc Dba Western Technical Associates. 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-187-1042
Primary Part Number100404
Item NameRetainer,cover
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerWest Tech Systems Inc Dba Western Technical Associates
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
Switch Membrane
4820-00-541-56133233-9179-0 INTERCHANGEABLE
Valve,safety Relief
Kidde Fire Fighting, Inc. Div National Foam
5961-01-196-1755 INTERCHANGEABLE
Semiconductor Device,diode
4320-01-426-3305100404 INTERCHANGEABLE
Power End,pump
Clyde Union Inc Dba Clydeunion Pumps
5305-01-515-441310-0404 INTERCHANGEABLE
Screw,cap,hexagon Head
Parker Hannifin Corporation Div Village Marine Tech
5999-01-532-3948 INTERCHANGEABLE
Parts Kit,electronic Equipment
3010-01-535-3783100404 INTERCHANGEABLE
Coupling Half,shaft
North American Marine Jet, Inc
Cross-Reference Index
Part NumberManufacturer
100404 PRIMARY West Tech Systems Inc Dba Western Technical Associates (USA)
Related Parts
6530-01-508-7261SUCCESSOR
SWITCH MEMBRANE
4820-00-541-5613INTERCHANGEABLE
VALVE,SAFETY RELIEF
3233-9179-0
5961-01-196-1755INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4320-01-426-3305INTERCHANGEABLE
POWER END,PUMP
100404
5305-01-515-4413INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
10-0404
5999-01-532-3948INTERCHANGEABLE
PARTS KIT,ELECTRONIC EQUIPMENT
3010-01-535-3783INTERCHANGEABLE
COUPLING HALF,SHAFT
100404

Frequently Asked Questions

What is NSN 5340-01-187-1042?

NSN 5340-01-187-1042 is a Retainer,cover, manufactured by West Tech Systems Inc Dba Western Technical Associates, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-187-1042?

NSN 5340-01-187-1042 has 1 cross-referenced part number: 100404 (West Tech Systems Inc Dba Western Technical Associates).

What NSN replaces 5340-01-187-1042?

There are 7 known substitutes for 5340-01-187-1042: 6530-01-508-7261, 4820-00-541-5613, 5961-01-196-1755 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100404?

Key specifications for 100404: End Item Identification: VASI; Part Name Assigned by Controlling Agency: END CAP; Special Features: MATERIAL,STEEL; CONSISTS OF ONE THREADED COLLAR 2.375 IN. DIA.; TWO THREADED HEXAGON NUTS,ONE WITH AN INNER PLATE WITH A THREADED 0.437 IN. CENTERED HOLE; MATERIAL, STEEL; CONSISTS OF ONE THREADED COLLOR 2.375 IN. DIA; TWO THREADED HEXAGON NUTS, ONE WITH AN INNER PLATE WITH A THREADED 0.437 IN. CENTERED HOLE IN. 3 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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