PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04-5204Relay,electromagnetic

Bacharach, Inc. · NSN 5945-01-177-2813 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-177-2813 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-177-2813. Primary manufacturer part number: 04-5204.
Features
  • Relay,electromagnetic — FSC 5945
  • Precious Material and Location: CONTACTS SILVER
  • Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC RESISTIVE LOAD
  • Terminal Type and Quantity: 8 TAB, SOLDER LUG ALL FUNCTIONS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Operating Voltage Rating and Type at Specified Temp: 12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Winding Quantity: 1
  • Material: SILVER CONTACT
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
  • Applications requiring Silver Contact construction
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-177-2813, 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 Bacharach, Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5945-01-177-2813
Primary Part Number04-5204
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerBacharach, Inc.
StatusACTIVE
Precious Material and LocationCONTACTS SILVER
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC RESISTIVE LOAD
Terminal Type and Quantity8 TAB, SOLDER LUG ALL FUNCTIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Winding Quantity1
MaterialSILVER CONTACT
Precious MaterialSILVER
Coil Quantity1
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts115.0 AC
Mounting Facility Type and Quantity1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Environmental ProtectionDUSTPROOF
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating100.0 OHMS NOMINAL SINGLE WINDING
Pile-Up Main Contact Form Arrangement2C
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5962-00-497-158674L04N INTERCHANGEABLE
Microcircuit,digital
Fairchild Semiconductor Corp
5910-01-415-70840452-04 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Kooltronic, Inc.
Cross-Reference Index
Part NumberManufacturer
1R-645U-2C-12D Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
04-5204 PRIMARY Bacharach, Inc. (USA)
Related Parts
5962-00-497-1586INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
74L04N
5910-01-415-7084INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
0452-04

Frequently Asked Questions

What is NSN 5945-01-177-2813?

NSN 5945-01-177-2813 is a Relay,electromagnetic, manufactured by Bacharach, Inc., classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-177-2813?

NSN 5945-01-177-2813 has 2 cross-referenced part numbers: 1R-645U-2C-12D (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), 04-5204 (Bacharach, Inc.).

What NSN replaces 5945-01-177-2813?

There are 2 known substitutes for 5945-01-177-2813: 5962-00-497-1586, 5910-01-415-7084. Verify interchangeability with system specifications before substitution.

What are the specifications of 04-5204?

Key specifications for 04-5204: Precious Material and Location: CONTACTS SILVER; Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC RESISTIVE LOAD; Terminal Type and Quantity: 8 TAB, SOLDER LUG ALL FUNCTIONS; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY. 22 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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