PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31203Switch,mains

Vident · NSN 6520-01-540-4582 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-540-4582 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-540-4582. Primary manufacturer part number: 31203.
Features
  • Switch,mains — FSC 6520
  • 2 verified cross-references
  • Primary manufacturer: Vident
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,mains, cataloged under National Stock Number 6520-01-540-4582, is classified within Federal Supply Class 6520 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Vident. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6520-01-540-4582
Primary Part Number31203
Item NameSwitch,mains
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerVident
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5330-00-111-648031203 INTERCHANGEABLE
Seal,oil
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5945-00-259-5500TKLHPX2 INTERCHANGEABLE
Relay,electromagnetic
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
4931-00-466-7893FT-16AEU3-LAA-1 INTERCHANGEABLE
Flowmeter,turbine
Fti Flow Technology Llc
5365-00-485-4342 INTERCHANGEABLE
Spacer,ring
5120-00-517-53475120-00-517-5347 INTERCHANGEABLE
Wrench,tap and Reamer
General Services Administration Federal Supply Service
4130-00-809-545731203 INTERCHANGEABLE
Cooling Coil,air,duct Type
Hdt Expeditionary Systems Inc
5935-00-883-217331-203 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
3455-01-044-79491726-0500 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
6515-01-104-2027 INTERCHANGEABLE
Plate,eggers
4820-01-122-569931203 INTERCHANGEABLE
Valve,control
London Machinery Inc
Cross-Reference Index
Part NumberManufacturer
LL-H59-4920 Naval Medical Material Support Command Detachment (USA)
31203 PRIMARY Vident (USA)
Related Parts
5330-00-111-6480INTERCHANGEABLE
SEAL,OIL
31203
5945-00-259-5500INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
TKLHPX2
4931-00-466-7893INTERCHANGEABLE
FLOWMETER,TURBINE
FT-16AEU3-LAA-1
5365-00-485-4342INTERCHANGEABLE
SPACER,RING
5120-00-517-5347INTERCHANGEABLE
WRENCH,TAP AND REAMER
5120-00-517-5347
4130-00-809-5457INTERCHANGEABLE
COOLING COIL,AIR,DUCT TYPE
31203
5935-00-883-2173INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-203
3455-01-044-7949INTERCHANGEABLE
CUTTER,MILLING,END
1726-0500
6515-01-104-2027INTERCHANGEABLE
PLATE,EGGERS
4820-01-122-5699INTERCHANGEABLE
VALVE,CONTROL
31203
5310-01-571-8345INTERCHANGEABLE
NUT HEX,AIRCRAFT,MA
5995-01-630-8888INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
31203

Frequently Asked Questions

What is NSN 6520-01-540-4582?

NSN 6520-01-540-4582 is a Switch,mains, manufactured by Vident, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-01-540-4582?

NSN 6520-01-540-4582 has 2 cross-referenced part numbers: LL-H59-4920 (Naval Medical Material Support Command Detachment), 31203 (Vident).

What NSN replaces 6520-01-540-4582?

There are 12 known substitutes for 6520-01-540-4582: 5330-00-111-6480, 5945-00-259-5500, 4931-00-466-7893 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31203?

Key specifications for 31203: End Item Identification: FURNACE, DENTAL LABORA. 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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