PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMC144572Relay,electromagnetic

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-00-258-9852 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-258-9852 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-258-9852. Primary manufacturer part number: SMC144572.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Duty Type: CONTINUOUS
  • Winding Quantity: 1
  • Winding DC Resistance Rating: 7.0 KILOHMS NOMINAL SINGLE WINDING
  • Main Contact Load Current Rating at Maximum Rated Voltage: 500.0 MILLIAMPERES DC RESISTIVE LOAD
  • Nominal Operating Current Rating and Type: 6.0 MILLIAMPERES DC SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-258-9852, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN5945-00-258-9852
Primary Part NumberSMC144572
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Winding Quantity1
Winding DC Resistance Rating7.0 KILOHMS NOMINAL SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage500.0 MILLIAMPERES DC RESISTIVE LOAD
Nominal Operating Current Rating and Type6.0 MILLIAMPERES DC SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Environmental ProtectionHERMETIC
Main Contact Maximum Voltage Rating in Volts32.0 DC
Operating Voltage Rating and Type at Specified Temp7.00 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Coil Quantity1
Thread Class2A SINGLE MOUNTING FACILITY A
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5998-00-081-7768 INTERCHANGEABLE
Circuit Card Assembly
5110-00-268-129250-10957 INTERCHANGEABLE
Reamer,hand
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
2030-00-399-49024503 INTERCHANGEABLE
Chain Section
Jeffrey Chain L.p.
5360-00-446-87984503 INTERCHANGEABLE
Spring,helical,compression
Northrop Grumman Systems Corporation Div Marine Systems
6240-00-539-8412 INTERCHANGEABLE
Lamp,incandescent
5950-00-766-85462520885PC1 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3040-00-767-7206 INTERCHANGEABLE
Worm Shaft
5999-00-828-90075682-41 INTERCHANGEABLE
Clip,electrical
Cooper Bussmann, Llc Dba Cooper Industries
7330-00-969-03804503 INTERCHANGEABLE
Plate,meat Grinder
Middleby Marshall Inc Conveyor Ovens and Mixers Div
4930-01-005-378713217E3059 INTERCHANGEABLE
Harness Assembly,vehicular
Cecom Lr Center
Cross-Reference Index
Part NumberManufacturer
5RJ4503-1 Sigma Instruments Inc (USA)
405-0122-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
5RJ4503 Sigma Instruments Inc (USA)
4503 Sigma Instruments Inc (USA)
SMC144572 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
5RX Sigma Instruments Inc (USA)
Related Parts
5998-00-081-7768INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5110-00-268-1292INTERCHANGEABLE
REAMER,HAND
50-10957
2030-00-399-4902INTERCHANGEABLE
CHAIN SECTION
4503
5360-00-446-8798INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4503
6240-00-539-8412INTERCHANGEABLE
LAMP,INCANDESCENT
5950-00-766-8546INTERCHANGEABLE
TRANSFORMER,POWER
2520885PC1
3040-00-767-7206INTERCHANGEABLE
WORM SHAFT
5999-00-828-9007INTERCHANGEABLE
CLIP,ELECTRICAL
5682-41
7330-00-969-0380INTERCHANGEABLE
PLATE,MEAT GRINDER
4503
4930-01-005-3787INTERCHANGEABLE
HARNESS ASSEMBLY,VEHICULAR
13217E3059
5985-01-096-1610INTERCHANGEABLE
ATTENUATOR,FIXED
4503
5950-01-172-2292INTERCHANGEABLE
TRANSFORMER,POWER
4503

Frequently Asked Questions

What is NSN 5945-00-258-9852?

NSN 5945-00-258-9852 is a Relay,electromagnetic, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-258-9852?

NSN 5945-00-258-9852 has 6 cross-referenced part numbers: 5RJ4503-1 (Sigma Instruments Inc), 405-0122-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 5RJ4503 (Sigma Instruments Inc), 4503 (Sigma Instruments Inc), SMC144572 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir) and 1 more.

What NSN replaces 5945-00-258-9852?

There are 12 known substitutes for 5945-00-258-9852: 5998-00-081-7768, 5110-00-268-1292, 2030-00-399-4902 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SMC144572?

Key specifications for SMC144572: Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY; Overall Height: 1.500 INCHES NOMINAL IN; Duty Type: CONTINUOUS. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-258-9852 still in active supply?

NSN 5945-00-258-9852 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.
PartsTable Design LLC · partstable.com