PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21CCap,core

Stanley Security Solutions, Inc Dba Best Lock · NSN 5342-01-315-1973 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-01-315-1973 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-315-1973. Primary manufacturer part number: 21C.
Features
  • Cap,core — FSC 5342
  • 1 verified cross-reference
  • Primary manufacturer: Stanley Security Solutions, Inc Dba Best Lock
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Cap,core, cataloged under National Stock Number 5342-01-315-1973, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Stanley Security Solutions, Inc Dba Best Lock. 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 NameCap,core
FSC / FSG5342 — Mount,resilient,weapon System (FSG 53)
ManufacturersStanley Security Solutions, Inc Dba Best Lock (CAGE 70019)
Technical Specifications
ParameterValue
NSN5342-01-315-1973
Primary Part Number21C
Item NameCap,core
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerStanley Security Solutions, Inc Dba Best Lock
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5975-00-188-116458-C-7 INTERCHANGEABLE
Plate,wall,electrical
Abb Installation Products Inc
5999-00-230-1195R716 INTERCHANGEABLE
Clip,electrical
Dietzgen Corp
5999-00-260-0447 INTERCHANGEABLE
Clip,electrical
5999-00-539-1970864231PC2 INTERCHANGEABLE
Clip,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5120-00-650-120221C INTERCHANGEABLE
Wrench,ratchet
Lowell Corporation Dba Lowell Corp
3750-01-420-067721C INTERCHANGEABLE
Trimmer,weed
Skyland Equipment Co Inc
3455-01-653-417821C INTERCHANGEABLE
Cutter,engraving
Wen Products Inc
Cross-Reference Index
Part NumberManufacturer
21C Stanley Security Solutions, Inc Dba Best Lock (USA)
Related Parts
5975-00-188-1164INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
58-C-7
5999-00-230-1195INTERCHANGEABLE
CLIP,ELECTRICAL
R716
5999-00-260-0447INTERCHANGEABLE
CLIP,ELECTRICAL
5999-00-539-1970INTERCHANGEABLE
CLIP,ELECTRICAL
864231PC2
5120-00-650-1202INTERCHANGEABLE
WRENCH,RATCHET
21C
3750-01-420-0677INTERCHANGEABLE
TRIMMER,WEED
21C
3455-01-653-4178INTERCHANGEABLE
CUTTER,ENGRAVING
21C

Frequently Asked Questions

What is NSN 5342-01-315-1973?

NSN 5342-01-315-1973 is a Cap,core, manufactured by Stanley Security Solutions, Inc Dba Best Lock, classified under FSC 5342 (Mount,resilient,weapon System). Status: active.

What are the part numbers for NSN 5342-01-315-1973?

NSN 5342-01-315-1973 has 1 cross-referenced part number: 21C (Stanley Security Solutions, Inc Dba Best Lock).

What NSN replaces 5342-01-315-1973?

There are 7 known substitutes for 5342-01-315-1973: 5975-00-188-1164, 5999-00-230-1195, 5999-00-260-0447 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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