PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40253Relay,electromagnetic

Gentherm Medical, Llc · NSN 5945-01-343-0046 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-343-0046 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-343-0046. Primary manufacturer part number: 40253.
Features
  • Relay,electromagnetic — FSC 5945
  • 3 verified cross-references
  • Primary manufacturer: Gentherm Medical, Llc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-343-0046, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Gentherm Medical, Llc. This item has 3 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.

Technical Specifications
ParameterValue
NSN5945-01-343-0046
Primary Part Number40253
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerGentherm Medical, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5996-00-043-0247 INTERCHANGEABLE
Amplifier,electronic Control
5905-00-043-4754 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
3110-00-100-059853375 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5950-00-470-937542809 INTERCHANGEABLE
Reactor
Freed Transformer Co
2990-00-845-143740253 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
2910-00-997-9815 INTERCHANGEABLE
Pump,fuel,cam Actuated
5331-01-022-38394012-53 INTERCHANGEABLE
O-Ring
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5835-01-096-364740253 INTERCHANGEABLE
Kit
Crown Audio, Inc. Dba Crown International
5331-01-264-1007 INTERCHANGEABLE
O-Ring
5330-01-271-3583 INTERCHANGEABLE
Packing,preformed
Cross-Reference Index
Part NumberManufacturer
5975-03-L00-0279 Naval Medical Material Support Command Detachment (USA)
401253 Gentherm Medical, Llc (USA)
40253 PRIMARY Gentherm Medical, Llc (USA)
Related Parts
5996-00-043-0247INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
5905-00-043-4754INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
3110-00-100-0598INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
53375
5950-00-470-9375INTERCHANGEABLE
REACTOR
42809
2990-00-845-1437INTERCHANGEABLE
PIPE,EXHAUST
40253
2910-00-997-9815INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
5331-01-022-3839INTERCHANGEABLE
O-RING
4012-53
5835-01-096-3647INTERCHANGEABLE
KIT
40253
5331-01-264-1007INTERCHANGEABLE
O-RING
5330-01-271-3583INTERCHANGEABLE
PACKING,PREFORMED
5310-01-556-6817INTERCHANGEABLE
WASHER,LOCK
40253
6680-01-668-7255INTERCHANGEABLE
METER,FLOW RATE INDICATING
40-1253

Frequently Asked Questions

What is NSN 5945-01-343-0046?

NSN 5945-01-343-0046 is a Relay,electromagnetic, manufactured by Gentherm Medical, Llc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-343-0046?

NSN 5945-01-343-0046 has 3 cross-referenced part numbers: 5975-03-L00-0279 (Naval Medical Material Support Command Detachment), 401253 (Gentherm Medical, Llc), 40253 (Gentherm Medical, Llc).

What NSN replaces 5945-01-343-0046?

There are 12 known substitutes for 5945-01-343-0046: 5996-00-043-0247, 5905-00-043-4754, 3110-00-100-0598 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40253?

Key specifications for 40253: Special Features: FOR USE ON HYPER-HYPOTHERMIA UNIT; MODEL 222; End Item Identification: 6530-01-287-0611. 2 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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