PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45201Lockout,switch

Klein Tools Inc · NSN 5342-01-251-2040 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-01-251-2040 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-251-2040. Primary manufacturer part number: 45201.
Features
  • Lockout,switch — FSC 5342
  • General Characteristics Item Description: STEEL,ZINC PLATED,INTERLOCKING TABS,STEEL,RED VINYL PLASTIC,HASP; SIX HOLES 0.3125 IN. DIA; 1.500 IN. CLOSED HASP ID IN
  • 1 verified cross-reference
  • Primary manufacturer: Klein Tools Inc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Lockout,switch, cataloged under National Stock Number 5342-01-251-2040, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Klein Tools Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN5342-01-251-2040
Primary Part Number45201
Item NameLockout,switch
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerKlein Tools Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL,ZINC PLATED,INTERLOCKING TABS,STEEL,RED VINYL PLASTIC,HASP; SIX HOLES 0.3125 IN. DIA; 1.500 IN. CLOSED HASP ID IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3455-00-268-951259-10085 INTERCHANGEABLE
Cutter,milling,screw Slotting
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
2530-00-452-87433109109A INTERCHANGEABLE
Conduit Asy Cable
Chrysler Corp Engine and Components Sales Diversified Products Div
5935-01-032-8300SF000-780 INTERCHANGEABLE
Connector,plug,electrical
Thermo Electric Company Inc. Dba Thermo Electric Company
1560-01-669-89604-5201-98 INTERCHANGEABLE
Spar,aircraft
The Boeing Company Div Legacy Wichita
1560-01-669-89654-5201-96 INTERCHANGEABLE
Spar,aircraft
The Boeing Company Div Legacy Wichita
1560-01-669-89704-5201-97 INTERCHANGEABLE
Spar,aircraft
The Boeing Company Div Legacy Wichita
1560-01-669-89784-5201-95 INTERCHANGEABLE
Spar,aircraft
The Boeing Company Div Legacy Wichita
Cross-Reference Index
Part NumberManufacturer
45201 Klein Tools Inc (USA)
Related Parts
3455-00-268-9512INTERCHANGEABLE
CUTTER,MILLING,SCREW SLOTTING
59-10085
2530-00-452-8743INTERCHANGEABLE
CONDUIT ASY CABLE
3109109A
5935-01-032-8300INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SF000-780
1560-01-669-8960INTERCHANGEABLE
SPAR,AIRCRAFT
4-5201-98
1560-01-669-8965INTERCHANGEABLE
SPAR,AIRCRAFT
4-5201-96
1560-01-669-8970INTERCHANGEABLE
SPAR,AIRCRAFT
4-5201-97
1560-01-669-8978INTERCHANGEABLE
SPAR,AIRCRAFT
4-5201-95

Frequently Asked Questions

What is NSN 5342-01-251-2040?

NSN 5342-01-251-2040 is a Lockout,switch, manufactured by Klein Tools Inc, classified under FSC 5342 (Mount,resilient,weapon System). Status: active.

What are the part numbers for NSN 5342-01-251-2040?

NSN 5342-01-251-2040 has 1 cross-referenced part number: 45201 (Klein Tools Inc).

What NSN replaces 5342-01-251-2040?

There are 7 known substitutes for 5342-01-251-2040: 3455-00-268-9512, 2530-00-452-8743, 5935-01-032-8300 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45201?

Key specifications for 45201: General Characteristics Item Description: STEEL,ZINC PLATED,INTERLOCKING TABS,STEEL,RED VINYL PLASTIC,HASP; SIX HOLES 0.3125 IN. DIA; 1.500 IN. CLOSED HASP ID 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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