PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

815781Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-726-7448 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-726-7448 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-726-7448. Primary manufacturer part number: 815781.
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 26.5 DC
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.973 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Winding Quantity: 1
  • Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES AC AND 2.0 AMPERES DC RESISTIVE LOAD
  • Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Winding DC Resistance Rating: 1.4 KILOHMS NOMINAL SINGLE WINDING
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-726-7448, 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 14 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-726-7448
Primary Part Number815781
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 26.5 DC
Center to Center Distance Between Mounting Facilities Parallel to Length0.973 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC RESISTIVE LOAD
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Winding DC Resistance Rating1.4 KILOHMS NOMINAL SINGLE WINDING
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Nominal Operating Current Rating and Type1.9 MILLIAMPERES DC SINGLE WINDING
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Unthreaded Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3805-00-127-287679258 INTERCHANGEABLE
Carrier,differential
Komatsu America Corporation
5950-01-198-901681578-1 INTERCHANGEABLE
Transformer,pulse
Hamilton Sundstrand Corporation Dba Collins Aerospace
5998-01-368-1491815781-805 INTERCHANGEABLE
Circuit Card Assembly
Raytheon Company
6150-01-525-20678321-03 INTERCHANGEABLE
Cable Assembly,ribbon,electrical
Howell Laboratories Inc Dba Howell Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
815781 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
RSHX15A Allied Controls, Inc. (USA)
12Z13001-9438 Naval Ordnance Standards (USA)
RSHX15 Allied Controls, Inc. (USA)
Related Parts
3805-00-127-2876INTERCHANGEABLE
CARRIER,DIFFERENTIAL
79258
5950-01-198-9016INTERCHANGEABLE
TRANSFORMER,PULSE
81578-1
5998-01-368-1491INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
815781-805
6150-01-525-2067INTERCHANGEABLE
CABLE ASSEMBLY,RIBBON,ELECTRICAL
8321-03

Frequently Asked Questions

What is NSN 5945-00-726-7448?

NSN 5945-00-726-7448 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: cancelled.

What are the part numbers for NSN 5945-00-726-7448?

NSN 5945-00-726-7448 has 4 cross-referenced part numbers: 815781 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), RSHX15A (Allied Controls, Inc.), 12Z13001-9438 (Naval Ordnance Standards), RSHX15 (Allied Controls, Inc.).

What NSN replaces 5945-00-726-7448?

There are 4 known substitutes for 5945-00-726-7448: 3805-00-127-2876, 5950-01-198-9016, 5998-01-368-1491 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 815781?

Key specifications for 815781: Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 26.5 DC; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.973 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Winding Quantity: 1; Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES AC AND 2.0 AMPERES DC RESISTIVE LOAD. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-726-7448 still in active supply?

NSN 5945-00-726-7448 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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