PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2857781Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-502-9636 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-502-9636 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-502-9636. Primary manufacturer part number: 2857781.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding Quantity: 1
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC
  • Winding DC Resistance Rating: 55.0 OHMS NOMINAL SINGLE WINDING
  • Duty Type: CONTINUOUS
  • Pile-Up Main Contact Form Arrangement: 2C AND 1C
  • Main Contact Load Current Rating at Maximum Rated Voltage: 20.0 AMPERES AC RESISTIVE LOAD
  • Operating Voltage Rating and Type at Specified Temp: 115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-502-9636, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 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
NSN5945-00-502-9636
Primary Part Number2857781
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Winding Quantity1
Main Contact Maximum Voltage Rating in Volts115.0 AC
Winding DC Resistance Rating55.0 OHMS NOMINAL SINGLE WINDING
Duty TypeCONTINUOUS
Pile-Up Main Contact Form Arrangement2C AND 1C
Main Contact Load Current Rating at Maximum Rated Voltage20.0 AMPERES AC RESISTIVE LOAD
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Nominal Operating Current Rating and Type2.0 AMPERES AC SINGLE WINDING
Environmental ProtectionHERMETIC
Frequency in Hertz60.0 NOMINAL
Coil Quantity1
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Terminal Type and Quantity11 PIN ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-227-405045285 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
6210-01-728-5648285778-1 INTERCHANGEABLE
Retainer,lens
Elbit Systems of America - Night Vision Llc
Cross-Reference Index
Part NumberManufacturer
650-1832 Northern Telecom Inc Telecom Distribution Div (USA)
P11159A Projects Unlimited Inc (USA)
AE124-001-99 Dare Electronics, Inc. (USA)
2857781 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
786-0002 Northern Telecom Inc Telecom Distribution Div (USA)
P11184 Projects Unlimited Inc (USA)
P11159D101 Projects Unlimited Inc (USA)
P11159 Projects Unlimited Inc (USA)
183B113 Genicom Corp (USA)
12Z13001-9282 Naval Ordnance Standards (USA)
Related Parts
3110-00-227-4050INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
45285
6210-01-728-5648INTERCHANGEABLE
RETAINER,LENS
285778-1

Frequently Asked Questions

What is NSN 5945-00-502-9636?

NSN 5945-00-502-9636 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 5945-00-502-9636?

NSN 5945-00-502-9636 has 10 cross-referenced part numbers: 650-1832 (Northern Telecom Inc Telecom Distribution Div), P11159A (Projects Unlimited Inc), AE124-001-99 (Dare Electronics, Inc.), 2857781 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 786-0002 (Northern Telecom Inc Telecom Distribution Div) and 5 more.

What NSN replaces 5945-00-502-9636?

There are 2 known substitutes for 5945-00-502-9636: 3110-00-227-4050, 6210-01-728-5648. Verify interchangeability with system specifications before substitution.

What are the specifications of 2857781?

Key specifications for 2857781: Winding Quantity: 1; Overall Length: 5.370 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 115.0 AC; Winding DC Resistance Rating: 55.0 OHMS NOMINAL SINGLE WINDING. 16 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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