PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5G29057Relay,electromagnetic

Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co · NSN 5945-00-283-5978 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-283-5978 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-283-5978. Primary manufacturer part number: 5G29057.
Features
  • Relay,electromagnetic — FSC 5945
  • Nonpile-Up Main Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 1.5 AMPERES AC RESISTIVE LOAD
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC
  • Winding Quantity: 1
  • Winding DC Resistance Rating: 5.0 KILOHMS NOMINAL SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-283-5978, 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 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-283-5978
Primary Part Number5G29057
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerGuardian Electric Manufacturing Co Div Guardian Electric Mfg Co
StatusACTIVE
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Main Contact Load Current Rating at Maximum Rated Voltage1.5 AMPERES AC RESISTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to Length2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts115.0 AC
Winding Quantity1
Winding DC Resistance Rating5.0 KILOHMS NOMINAL SINGLE WINDING
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Environmental ProtectionDUSTPROOF
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Nominal Operating Current Rating and Type14.0 MILLIAMPERES DC SINGLE WINDING
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp70.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Thread Class2B SINGLE MOUNTING FACILITY
Coil Quantity1
Overall Diameter3.310 INCHES NOMINAL IN
Duty TypeCONTINUOUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3010-01-322-4200 INTERCHANGEABLE
Gear Assembly,speed Decreaser
3950-01-373-1667 INTERCHANGEABLE
Winch,drum,power Operated
Cross-Reference Index
Part NumberManufacturer
5G29057 PRIMARY Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
G29057 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
201489 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
3000125-001 Ctl Aerospace Inc (USA)
Related Parts
3010-01-322-4200INTERCHANGEABLE
GEAR ASSEMBLY,SPEED DECREASER
3950-01-373-1667INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED

Frequently Asked Questions

What is NSN 5945-00-283-5978?

NSN 5945-00-283-5978 is a Relay,electromagnetic, manufactured by Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-283-5978?

NSN 5945-00-283-5978 has 4 cross-referenced part numbers: 5G29057 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), G29057 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), 201489 (Lockheed Martin Corporation Div Rms - Mitchel Field), 3000125-001 (Ctl Aerospace Inc).

What NSN replaces 5945-00-283-5978?

There are 2 known substitutes for 5945-00-283-5978: 3010-01-322-4200, 3950-01-373-1667. Verify interchangeability with system specifications before substitution.

What are the specifications of 5G29057?

Key specifications for 5G29057: Nonpile-Up Main Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY; Main Contact Load Current Rating at Maximum Rated Voltage: 1.5 AMPERES AC RESISTIVE LOAD; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY. 20 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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