PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2660476Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-451-0878 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-451-0878 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-451-0878. Primary manufacturer part number: 2660476.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Winding DC Resistance Rating: 1.42 KILOHMS NOMINAL SECOND WINDING
  • Unthreaded Mounting Hole Diameter: 0.310 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 115.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 250.0 AMPERES AC RESISTIVE LOAD
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 10.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-451-0878, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-451-0878
Primary Part Number2660476
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Width8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating1.42 KILOHMS NOMINAL SECOND WINDING
Unthreaded Mounting Hole Diameter0.310 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Main Contact Load Current Rating at Maximum Rated Voltage250.0 AMPERES AC RESISTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to Length10.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating183.0 OHMS NOMINAL FIRST WINDING
Duty TypeCONTINUOUS
Nonpile-Up Main Contact Arrangement3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Nonpile-Up Auxiliary Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Auxiliary Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Terminal Type and Quantity16 PIN ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts600.0 AC
Environmental ProtectionDUSTPROOF
Winding Quantity2
Coil Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-432-0370 INTERCHANGEABLE
Resistor,fixed,film
1610-00-805-5962560771 INTERCHANGEABLE
Plunger,spring Seat
Hamilton Sundstrand Corporation Dba Collins Aerospace
5970-00-983-8948A121-52 INTERCHANGEABLE
Insulator,bushing
Seastrom Manufacturing Co Inc
Cross-Reference Index
Part NumberManufacturer
2660476 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
RP151B4548X46R20 Jennings Technology Company Llc Dba Jennings (USA)
RP151B4548X26R20 Jennings Technology Company Llc Dba Jennings (USA)
RP151B4548X26RX0 Jennings Technology Company Llc Dba Jennings (USA)
560771 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5905-00-432-0370INTERCHANGEABLE
RESISTOR,FIXED,FILM
1610-00-805-5962INTERCHANGEABLE
PLUNGER,SPRING SEAT
560771
5970-00-983-8948INTERCHANGEABLE
INSULATOR,BUSHING
A121-52

Frequently Asked Questions

What is NSN 5945-00-451-0878?

NSN 5945-00-451-0878 is a Relay,electromagnetic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-451-0878?

NSN 5945-00-451-0878 has 5 cross-referenced part numbers: 2660476 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), RP151B4548X46R20 (Jennings Technology Company Llc Dba Jennings), RP151B4548X26R20 (Jennings Technology Company Llc Dba Jennings), RP151B4548X26RX0 (Jennings Technology Company Llc Dba Jennings), 560771 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5945-00-451-0878?

There are 3 known substitutes for 5945-00-451-0878: 5905-00-432-0370, 1610-00-805-5962, 5970-00-983-8948. Verify interchangeability with system specifications before substitution.

What are the specifications of 2660476?

Key specifications for 2660476: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Width: 9.150 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Winding DC Resistance Rating: 1.42 KILOHMS NOMINAL SECOND WINDING. 21 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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