PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

452-1540-1Relay,electromagnetic

Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions · NSN 5945-00-257-9046 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-257-9046 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-257-9046. Primary manufacturer part number: 452-1540-1.
Features
  • Relay,electromagnetic — FSC 5945
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Terminal Type and Quantity: 14 PIN ALL FUNCTIONS
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Coil Quantity: 1
  • Environmental Protection: HERMETIC
  • Main Contact Load Current Rating at Maximum Rated Voltage: 3.0 AMPERES AC RESISTIVE LOAD
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-257-9046, 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 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-257-9046
Primary Part Number452-1540-1
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions
StatusCANCELLED
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity14 PIN ALL FUNCTIONS
Thread Class2A SINGLE MOUNTING FACILITY A
Coil Quantity1
Environmental ProtectionHERMETIC
Main Contact Load Current Rating at Maximum Rated Voltage3.0 AMPERES AC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity3 THREADED STUD(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Nominal Operating Current Rating and Type150.0 MILLIAMPERES DC SINGLE WINDING
Pile-Up Main Contact Form Arrangement4C
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Winding Quantity1
Operating Voltage Rating and Type at Specified Temp29.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts115.0 AC
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
2530-00-195-0152134430 INTERCHANGEABLE
Spool,valve,steering
Dana Off Highway Products, Llc
5950-00-320-73384611924 INTERCHANGEABLE
Transformer,audio Frequency
Naval Ship Systems Command
6150-01-302-062326077 INTERCHANGEABLE
Wiring Harness
U S Dept of Transportation Federal Aviation Administration
4320-01-666-360326077 INTERCHANGEABLE
Connector,fluid,pump
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5935-01-693-391826077 INTERCHANGEABLE
Connector,plug,electrical
Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
Cross-Reference Index
Part NumberManufacturer
452-1540-1 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA)
SKHX375 Allied Controls, Inc. (USA)
26077 Raytheon Company Dba Raytheon (USA)
Related Parts
2530-00-195-0152INTERCHANGEABLE
SPOOL,VALVE,STEERING
134430
5950-00-320-7338INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4611924
6150-01-302-0623INTERCHANGEABLE
WIRING HARNESS
26077
4320-01-666-3603INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
26077
5935-01-693-3918INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
26077

Frequently Asked Questions

What is NSN 5945-00-257-9046?

NSN 5945-00-257-9046 is a Relay,electromagnetic, manufactured by Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-257-9046?

NSN 5945-00-257-9046 has 3 cross-referenced part numbers: 452-1540-1 (Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions), SKHX375 (Allied Controls, Inc.), 26077 (Raytheon Company Dba Raytheon).

What NSN replaces 5945-00-257-9046?

There are 5 known substitutes for 5945-00-257-9046: 2530-00-195-0152, 5950-00-320-7338, 6150-01-302-0623 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 452-1540-1?

Key specifications for 452-1540-1: Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN; Terminal Type and Quantity: 14 PIN ALL FUNCTIONS; Thread Class: 2A SINGLE MOUNTING FACILITY A; Coil Quantity: 1. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-257-9046 still in active supply?

NSN 5945-00-257-9046 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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