PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-1Mount,resilient,weapon System

Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp · NSN 5342-00-055-2642 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-00-055-2642 — this item is cataloged by the U.S. Government under National Stock Number 5342-00-055-2642. Primary manufacturer part number: 21158-1.
Features
  • Mount,resilient,weapon System — FSC 5342
  • 3 verified cross-references
  • Primary manufacturer: Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Mount,resilient,weapon System, cataloged under National Stock Number 5342-00-055-2642, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp. This item has 3 commercial cross-references from 3 manufacturers, 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 NameMount,resilient,weapon System
FSC / FSG5342 — Mount,resilient,weapon System (FSG 53)
ManufacturersHutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp (CAGE 81860); Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (CAGE 97942); Lord Corporation Dba Lord Corp (CAGE 76005)
Technical Specifications
ParameterValue
NSN5342-00-055-2642
Primary Part Number21158-1
Item NameMount,resilient,weapon System
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerHutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-100-03312B2631 INTERCHANGEABLE
Cup,tapered Roller Bearing
Caterpillar Inc Div Caterpillar Defense
1630-00-483-7671211581 INTERCHANGEABLE
Piston,brake Cylind
Hydro-Aire Aerospace Corp
5985-01-442-5265 INTERCHANGEABLE
Coupler,rotary,radio Frequency
Cross-Reference Index
Part NumberManufacturer
21158-1 PRIMARY Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp (USA)
580R346 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
J8892-2 PRIMARY Lord Corporation Dba Lord Corp (USA)
Related Parts
3110-00-100-0331INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2B2631
1630-00-483-7671INTERCHANGEABLE
PISTON,BRAKE CYLIND
211581
5985-01-442-5265INTERCHANGEABLE
COUPLER,ROTARY,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5342-00-055-2642?

NSN 5342-00-055-2642 is a Mount,resilient,weapon System, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp, classified under FSC 5342 (Mount,resilient,weapon System). Status: active.

What are the part numbers for NSN 5342-00-055-2642?

NSN 5342-00-055-2642 has 3 cross-referenced part numbers: 21158-1 (Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp), 580R346 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), J8892-2 (Lord Corporation Dba Lord Corp).

What NSN replaces 5342-00-055-2642?

There are 3 known substitutes for 5342-00-055-2642: 3110-00-100-0331, 1630-00-483-7671, 5985-01-442-5265. Verify interchangeability with system specifications before substitution.

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