PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

144979Relay,electromagnetic

Telemechanics Inc · NSN 5945-00-899-6051 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-899-6051 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-899-6051. Primary manufacturer part number: 144979.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding DC Resistance Rating: 700.0 OHMS NOMINAL SINGLE WINDING
  • Coil Quantity: 1
  • Winding Quantity: 1
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Duty Type: CONTINUOUS
  • Nominal Operating Current Rating and Type: 40.0 MILLIAMPERES DC SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-899-6051, 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 Telemechanics Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-899-6051
Primary Part Number144979
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Winding DC Resistance Rating700.0 OHMS NOMINAL SINGLE WINDING
Coil Quantity1
Winding Quantity1
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Nominal Operating Current Rating and Type40.0 MILLIAMPERES DC SINGLE WINDING
Terminal Type and Quantity38 PIN ALL FUNCTIONS
Pile-Up Main Contact Form Arrangement9C AND 3D
Main Contact Maximum Voltage Rating in Volts50.0 DC
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES DC RESISTIVE LOAD
Thread Class2B SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.094 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2540-01-112-0525 INTERCHANGEABLE
Blade,windshield Wiper
2540-01-149-1053318371 INTERCHANGEABLE
Blade,windshield Wiper
Hyster-Yale Group, Inc.
5120-01-428-7976AJ15 INTERCHANGEABLE
Wrench,adjustable
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
144979 At and T Corp (USA)
144979 American Telephone and Telegraph Co (USA)
AJ15 Lucent Technologies Inc Dba Federal Marketing Group (USA)
AJ15 American Telephone and Telegraph Co (USA)
144979 Lucent Technologies Inc Corporate Headquarters (USA)
144979 Lucent Technologies Inc Dba Federal Marketing Group (USA)
AJ15RELAY American Telephone and Telegraph Co (USA)
AJ15 Lucent Technologies Inc Corporate Headquarters (USA)
144979 PRIMARY Telemechanics Inc (USA)
Related Parts
2540-01-112-0525INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
2540-01-149-1053INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
318371
5120-01-428-7976INTERCHANGEABLE
WRENCH,ADJUSTABLE
AJ15

Frequently Asked Questions

What is NSN 5945-00-899-6051?

NSN 5945-00-899-6051 is a Relay,electromagnetic, manufactured by Telemechanics Inc, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-899-6051?

NSN 5945-00-899-6051 has 9 cross-referenced part numbers: 144979 (At and T Corp), 144979 (American Telephone and Telegraph Co), AJ15 (Lucent Technologies Inc Dba Federal Marketing Group), AJ15 (American Telephone and Telegraph Co), 144979 (Lucent Technologies Inc Corporate Headquarters) and 4 more.

What NSN replaces 5945-00-899-6051?

There are 3 known substitutes for 5945-00-899-6051: 2540-01-112-0525, 2540-01-149-1053, 5120-01-428-7976. Verify interchangeability with system specifications before substitution.

What are the specifications of 144979?

Key specifications for 144979: Winding DC Resistance Rating: 700.0 OHMS NOMINAL SINGLE WINDING; Overall Length: 4.650 INCHES NOMINAL IN; Coil Quantity: 1; Winding Quantity: 1. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-899-6051 still in active supply?

NSN 5945-00-899-6051 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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