PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

613440-25Relay,electromagnetic

Lockheed Martin Corp · NSN 5945-00-821-5357 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-821-5357 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-821-5357. Primary manufacturer part number: 613440-25.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding Quantity: 2
  • Nonpile-Up Main Contact Arrangement: 3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Features Provided: LATCHING CONTACTS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 50.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Unthreaded Mounting Hole Diameter: 0.206 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-821-5357, 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 Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-821-5357
Primary Part Number613440-25
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Winding Quantity2
Nonpile-Up Main Contact Arrangement3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Features ProvidedLATCHING CONTACTS
Main Contact Load Current Rating at Maximum Rated Voltage50.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.206 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Coil Quantity2
Center to Center Distance Between Mounting Facilities Parallel to Width2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Terminal Type and Quantity13 SCREW ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts200.0 AC AND 26.0 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-155-84131000R37 INTERCHANGEABLE
Bearing,ball,annular
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
B140AL Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (rms) (USA)
B140AL Lockheed Martin Services, Llc (USA)
B140AL Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc (USA)
613440-25 PRIMARY Lockheed Martin Corp (USA)
B140AL Te Connectivity Corporation (USA)
B140AL Technical Engineering Sales-Service Co (USA)
B-2088 Precision Switching Inc (USA)
Related Parts
3110-00-155-8413INTERCHANGEABLE
BEARING,BALL,ANNULAR
1000R37

Frequently Asked Questions

What is NSN 5945-00-821-5357?

NSN 5945-00-821-5357 is a Relay,electromagnetic, manufactured by Lockheed Martin Corp, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-821-5357?

NSN 5945-00-821-5357 has 7 cross-referenced part numbers: B140AL (Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (rms)), B140AL (Lockheed Martin Services, Llc), B140AL (Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc), 613440-25 (Lockheed Martin Corp), B140AL (Te Connectivity Corporation) and 2 more.

What NSN replaces 5945-00-821-5357?

There is 1 known substitute for 5945-00-821-5357: 3110-00-155-8413. Verify interchangeability with system specifications before substitution.

What are the specifications of 613440-25?

Key specifications for 613440-25: Winding Quantity: 2; Nonpile-Up Main Contact Arrangement: 3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Features Provided: LATCHING CONTACTS. 17 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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