PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B58740Relay,electromagnetic

At and T Corp · NSN 5945-00-188-5600 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-188-5600 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-188-5600. Primary manufacturer part number: B58740.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Winding Quantity: 1
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Duty Type: CONTINUOUS
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Nominal Operating Current Rating and Type: 100.0 MILLIAMPERES DC SINGLE WINDING
  • Main Contact Load Current Rating at Maximum Rated Voltage: 15.0 AMPERES AC AND 15.0 AMPERES DC RESISTIVE LOAD
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-188-5600, 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 At and T Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-188-5600
Primary Part NumberB58740
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAt and T Corp
StatusCANCELLED
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Winding Quantity1
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Nominal Operating Current Rating and Type100.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage15.0 AMPERES AC AND 15.0 AMPERES DC RESISTIVE LOAD
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts110.0 AC AND 24.0 DC
Coil Quantity1
Mounting Facility Type and Quantity4 CLINCH NUT SINGLE MOUNTING FACILITY
Winding DC Resistance Rating230.0 OHMS NOMINAL SINGLE WINDING
Thread Class2B SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-008-733633622 INTERCHANGEABLE
Seat,ring,wrench
Leslie Controls, Inc. Dba Leslie Controls Inc
2990-00-104-2217VE527A INTERCHANGEABLE
Control Assembly,push-Pull
Wisconsin Motors, Llc
2805-00-145-603829407 INTERCHANGEABLE
Piston,internal Combustion Engin
Briggs and Stratton Corp
5306-00-206-9996232095 INTERCHANGEABLE
Bolt,externally Relieved Body
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5133-00-228-1323 INTERCHANGEABLE
Drill,twist
5133-00-232-8142 INTERCHANGEABLE
Drill,twist
3040-00-294-7790105982 INTERCHANGEABLE
Collar,shaft
Kearfott Corporation Div Guidance and Navigation Division
5999-00-332-29292920202 INTERCHANGEABLE
Delay Line
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5360-00-442-6352232095 INTERCHANGEABLE
Spring
Honeywell International Inc. Div Aerospace - Torrance
6515-00-479-8639 INTERCHANGEABLE
Catheter,urethral
Cross-Reference Index
Part NumberManufacturer
B58740 At and T Corp (USA)
B06D35 Allied Controls, Inc. (USA)
B1175-8 American Telephone and Telegraph Co (USA)
B0-6D-26 Northrop Grumman Systems Corporation (USA)
MS13407 Mancraft Industries Inc (USA)
BA14848 American Telephone and Telegraph Co (USA)
56232 Delco Electronics Corp Delco Systems Opns (USA)
RX210 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
9242409P21 Lockheed Martin Corporation Div Rms (USA)
BO-6D-26.5 Allied Controls, Inc. (USA)
232095 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
R360476-1 Raytheon Company (USA)
D0SX64 Allied Controls, Inc. (USA)
29407 Department of the Navy (USA)
71-5015P1 Raytheon Company Div Corp (USA)
B58740 American Telephone and Telegraph Co (USA)
M13177 Mancraft Industries Inc (USA)
12Z13001-3175 Naval Ordnance Standards (USA)
33622 Ge Aviation Systems Llc (USA)
KS5910L04 American Telephone and Telegraph Co (USA)
Related Parts
4820-00-008-7336INTERCHANGEABLE
SEAT,RING,WRENCH
33622
2990-00-104-2217INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
VE527A
2805-00-145-6038INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
29407
5306-00-206-9996INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
232095
5133-00-228-1323INTERCHANGEABLE
DRILL,TWIST
5133-00-232-8142INTERCHANGEABLE
DRILL,TWIST
3040-00-294-7790INTERCHANGEABLE
COLLAR,SHAFT
105982
5999-00-332-2929INTERCHANGEABLE
DELAY LINE
2920202
5360-00-442-6352INTERCHANGEABLE
SPRING
232095
6515-00-479-8639INTERCHANGEABLE
CATHETER,URETHRAL
5945-00-544-7552INTERCHANGEABLE
ARMATURE,RELAY
B0-6D-24VDC
3040-00-876-8803INTERCHANGEABLE
SHAFT
H6605-674-1360

Frequently Asked Questions

What is NSN 5945-00-188-5600?

NSN 5945-00-188-5600 is a Relay,electromagnetic, manufactured by At and T Corp, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-188-5600?

NSN 5945-00-188-5600 has 27 cross-referenced part numbers: B58740 (At and T Corp), B06D35 (Allied Controls, Inc.), B1175-8 (American Telephone and Telegraph Co), B0-6D-26 (Northrop Grumman Systems Corporation), MS13407 (Mancraft Industries Inc) and 22 more.

What NSN replaces 5945-00-188-5600?

There are 12 known substitutes for 5945-00-188-5600: 4820-00-008-7336, 2990-00-104-2217, 2805-00-145-6038 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B58740?

Key specifications for B58740: Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Overall Length: 1.620 INCHES NOMINAL IN; Winding Quantity: 1; Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-188-5600 still in active supply?

NSN 5945-00-188-5600 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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