PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43-005Extension Link,backset

Schlage Lock Co · NSN 5342-00-333-6402 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-00-333-6402 — this item is cataloged by the U.S. Government under National Stock Number 5342-00-333-6402. Primary manufacturer part number: 43-005.
Features
  • Extension Link,backset — FSC 5342
  • General Characteristics Item Description: JOINED TO 2.750 IN. BACKSET LATCH UNIT PROVIDES 5.000 IN. EXTENSION IN
  • 2 verified cross-references
  • Primary manufacturer: Schlage Lock Co
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Extension Link,backset, cataloged under National Stock Number 5342-00-333-6402, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Schlage Lock Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5342-00-333-6402
Primary Part Number43-005
Item NameExtension Link,backset
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerSchlage Lock Co
StatusACTIVE
General Characteristics Item DescriptionJOINED TO 2.750 IN. BACKSET LATCH UNIT PROVIDES 5.000 IN. EXTENSION IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5962-00-300-237943-005 INTERCHANGEABLE
Microcircuit,digital
Hydro-Aire Aerospace Corp
5930-00-359-3969 INTERCHANGEABLE
Switch,thermostatic
5950-01-053-4102255SC277 INTERCHANGEABLE
Transformer,audio Frequency
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5998-01-251-2763A3085174 INTERCHANGEABLE
Printed Circuit Board
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5120-01-398-779100943005000 INTERCHANGEABLE
Socket,socket Wrench
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
43-005 Schlage Lock Co (USA)
D199-5INCH Schlage Lock Co (USA)
Related Parts
5962-00-300-2379INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
43-005
5930-00-359-3969INTERCHANGEABLE
SWITCH,THERMOSTATIC
5950-01-053-4102INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
255SC277
5998-01-251-2763INTERCHANGEABLE
PRINTED CIRCUIT BOARD
A3085174
5120-01-398-7791INTERCHANGEABLE
SOCKET,SOCKET WRENCH
00943005000

Frequently Asked Questions

What is NSN 5342-00-333-6402?

NSN 5342-00-333-6402 is a Extension Link,backset, manufactured by Schlage Lock Co, classified under FSC 5342 (Mount,resilient,weapon System). Status: active.

What are the part numbers for NSN 5342-00-333-6402?

NSN 5342-00-333-6402 has 2 cross-referenced part numbers: 43-005 (Schlage Lock Co), D199-5INCH (Schlage Lock Co).

What NSN replaces 5342-00-333-6402?

There are 5 known substitutes for 5342-00-333-6402: 5962-00-300-2379, 5930-00-359-3969, 5950-01-053-4102 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43-005?

Key specifications for 43-005: General Characteristics Item Description: JOINED TO 2.750 IN. BACKSET LATCH UNIT PROVIDES 5.000 IN. EXTENSION IN. 1 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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