PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40076Relay,thermal

Naval Ship Systems Command · NSN 5945-00-254-6281 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-254-6281 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-254-6281. Primary manufacturer part number: 40076.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 2.375 INCHES NOMINAL IN
  • Contact Maximum Current Rating in Amps: 15.0 AC
  • Heater Power Rating in Watts: 7.0
  • Contact Arrangement: SINGLE POLE, DOUBLE THROW
  • Heater Voltage Rating in Volts: 115.0
  • Mounting Facility Type and Quantity: 3 THREADED HOLE(S)
  • Delay Time in Seconds: 30.0 FIXED OPERATE AND RELEASE NOMINAL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-254-6281, 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 Naval Ship Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN5945-00-254-6281
Primary Part Number40076
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Overall Diameter2.375 INCHES NOMINAL IN
Contact Maximum Current Rating in Amps15.0 AC
Heater Power Rating in Watts7.0
Contact ArrangementSINGLE POLE, DOUBLE THROW
Heater Voltage Rating in Volts115.0
Mounting Facility Type and Quantity3 THREADED HOLE(S)
Delay Time in Seconds30.0 FIXED OPERATE AND RELEASE NOMINAL
Contact Maximum Voltage Rating in Volts110.0 AC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4920-00-215-088140076 INTERCHANGEABLE
Bearing Assembly,test Set
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
3455-00-232-903900970 INTERCHANGEABLE
Cutter,milling,side
Niagara Cutter Inc
5965-00-263-12269000S6501F73819 INTERCHANGEABLE
Box,handset Storage
Naval Ship Systems Command
2815-00-288-820940076A INTERCHANGEABLE
Deflector,dirt and Liquid
Brinkley Technology Group Llc Dba Hercules Manufacturing
5915-00-476-4565905215-1 INTERCHANGEABLE
Filter,low Pass
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
5940-00-878-3768304-0016-000 INTERCHANGEABLE
Terminal,lug
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4310-00-896-8828 INTERCHANGEABLE
Tube Assembly Metal
3110-01-141-2465 INTERCHANGEABLE
Shield,bearing
5340-01-346-4617 INTERCHANGEABLE
Rod,straight,headless
3040-01-397-233640095-1 INTERCHANGEABLE
Shaft,shouldered
Morpac Industries, Inc Div Actuator
Cross-Reference Index
Part NumberManufacturer
40076 PRIMARY Naval Ship Systems Command (USA)
M422407P1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
Related Parts
4920-00-215-0881INTERCHANGEABLE
BEARING ASSEMBLY,TEST SET
40076
3455-00-232-9039INTERCHANGEABLE
CUTTER,MILLING,SIDE
00970
5965-00-263-1226INTERCHANGEABLE
BOX,HANDSET STORAGE
9000S6501F73819
2815-00-288-8209INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
40076A
5915-00-476-4565INTERCHANGEABLE
FILTER,LOW PASS
905215-1
5940-00-878-3768INTERCHANGEABLE
TERMINAL,LUG
304-0016-000
4310-00-896-8828INTERCHANGEABLE
TUBE ASSEMBLY METAL
3110-01-141-2465INTERCHANGEABLE
SHIELD,BEARING
5340-01-346-4617INTERCHANGEABLE
ROD,STRAIGHT,HEADLESS
3040-01-397-2336INTERCHANGEABLE
SHAFT,SHOULDERED
40095-1
4820-01-415-4914INTERCHANGEABLE
GEAR OPERATOR,VALVE
40076-1
8465-01-541-7968INTERCHANGEABLE
HYDRATION SYSTEM
40076

Frequently Asked Questions

What is NSN 5945-00-254-6281?

NSN 5945-00-254-6281 is a Relay,thermal, manufactured by Naval Ship Systems Command, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-254-6281?

NSN 5945-00-254-6281 has 2 cross-referenced part numbers: 40076 (Naval Ship Systems Command), M422407P1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin).

What NSN replaces 5945-00-254-6281?

There are 12 known substitutes for 5945-00-254-6281: 4920-00-215-0881, 3455-00-232-9039, 5965-00-263-1226 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40076?

Key specifications for 40076: Overall Diameter: 2.375 INCHES NOMINAL IN; Contact Maximum Current Rating in Amps: 15.0 AC; Heater Power Rating in Watts: 7.0; Contact Arrangement: SINGLE POLE, DOUBLE THROW. 10 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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