PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1857857Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-681-0019 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-681-0019 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-681-0019. Primary manufacturer part number: 1857857.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Nonpile-Up Main Contact Arrangement: 3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Thread Direction: RIGHT-HAND SINGLE MOUNTING FACILITY
  • Winding Quantity: 1
  • Duty Type: CONTINUOUS
  • Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-681-0019, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-681-0019
Primary Part Number1857857
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 PatternRECTANGULAR SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Nonpile-Up Main Contact Arrangement3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Winding Quantity1
Duty TypeCONTINUOUS
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Thread Class2A SINGLE MOUNTING FACILITY A
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage400.0 MILLIAMPERES DC RESISTIVE LOAD
Coil Quantity1
Environmental ProtectionSHOCK RESISTANT
Winding DC Resistance Rating400.0 OHMS NOMINAL SINGLE WINDING
Terminal Type and Quantity8 WIRE HOOK ALL FUNCTIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts300.0 DC
Cubic Measure15.730 CUBIC INCHES
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp50.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-409-834158881-1 INTERCHANGEABLE
Gearshaft,spur
L3harris Technologies, Inc.
4330-01-121-635012360651 INTERCHANGEABLE
Parts Kit,fluid Pressure Filter
General Motors Llc Dba General Motors Llc
4820-01-247-255658881 INTERCHANGEABLE
Retainer,disk,valve
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
6240-01-344-9491 INTERCHANGEABLE
Lamp,incandescent
5985-01-423-7846 INTERCHANGEABLE
Probe,waveguide
Cross-Reference Index
Part NumberManufacturer
LSS-7324 Te Connectivity Corporation (USA)
58881 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
2376034 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
LSS-7324 Branson Corp (USA)
LSS-7324 Te Connectivity Corporation (USA)
1857857 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
3040-00-409-8341INTERCHANGEABLE
GEARSHAFT,SPUR
58881-1
4330-01-121-6350INTERCHANGEABLE
PARTS KIT,FLUID PRESSURE FILTER
12360651
4820-01-247-2556INTERCHANGEABLE
RETAINER,DISK,VALVE
58881
6240-01-344-9491INTERCHANGEABLE
LAMP,INCANDESCENT
5985-01-423-7846INTERCHANGEABLE
PROBE,WAVEGUIDE

Frequently Asked Questions

What is NSN 5945-00-681-0019?

NSN 5945-00-681-0019 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 5945-00-681-0019?

NSN 5945-00-681-0019 has 6 cross-referenced part numbers: LSS-7324 (Te Connectivity Corporation), 58881 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), 2376034 (Lockheed Martin Corporation Div Rms - Mitchel Field), LSS-7324 (Branson Corp), LSS-7324 (Te Connectivity Corporation) and 1 more.

What NSN replaces 5945-00-681-0019?

There are 5 known substitutes for 5945-00-681-0019: 3040-00-409-8341, 4330-01-121-6350, 4820-01-247-2556 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1857857?

Key specifications for 1857857: Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Nonpile-Up Main Contact Arrangement: 3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Thread Direction: RIGHT-HAND SINGLE MOUNTING FACILITY. 23 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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