PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R2037RELAYRelay,electromagnetic

Lucent Technologies Inc Corporate Headquarters · NSN 5945-00-503-9814 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-503-9814 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-503-9814. Primary manufacturer part number: R2037RELAY.
Features
  • Relay,electromagnetic — FSC 5945
  • Nominal Operating Current Rating and Type: 10.0 MILLIAMPERES DC SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Winding Quantity: 1
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Duty Type: CONTINUOUS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 0.375 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 5945-00-503-9814, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-503-9814
Primary Part NumberR2037RELAY
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Nominal Operating Current Rating and Type10.0 MILLIAMPERES DC SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Width0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating500.0 OHMS NOMINAL SINGLE WINDING
Mounting Facility PatternDIAGONAL SINGLE MOUNTING FACILITY
Environmental ProtectionDUSTPROOF
Main Contact Maximum Voltage Rating in Volts50.0 DC
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES DC RESISTIVE LOAD
Thread Class2B SINGLE MOUNTING FACILITY
Coil Quantity1
Terminal Type and Quantity12 PIN ALL FUNCTIONS
Pile-Up Main Contact Form Arrangement2C AND 2B
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp9.50 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3810-00-163-2220CC45 INTERCHANGEABLE
Link
Link-Belt Cranes, L.p., Lllp
Cross-Reference Index
Part NumberManufacturer
R2037 Lucent Technologies Inc Dba Federal Marketing Group (USA)
R2037RELAY PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
R2037RELAY Lucent Technologies Inc Dba Federal Marketing Group (USA)
R2037 Lucent Technologies Inc Corporate Headquarters (USA)
R2037 At and T Corp (USA)
R2037RELAY American Telephone and Telegraph Co (USA)
R2037 American Telephone and Telegraph Co (USA)
Related Parts
3810-00-163-2220INTERCHANGEABLE
LINK
CC45

Frequently Asked Questions

What is NSN 5945-00-503-9814?

NSN 5945-00-503-9814 is a Relay,electromagnetic, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-503-9814?

NSN 5945-00-503-9814 has 7 cross-referenced part numbers: R2037 (Lucent Technologies Inc Dba Federal Marketing Group), R2037RELAY (Lucent Technologies Inc Corporate Headquarters), R2037RELAY (Lucent Technologies Inc Dba Federal Marketing Group), R2037 (Lucent Technologies Inc Corporate Headquarters), R2037 (At and T Corp) and 2 more.

What NSN replaces 5945-00-503-9814?

There is 1 known substitute for 5945-00-503-9814: 3810-00-163-2220. Verify interchangeability with system specifications before substitution.

What are the specifications of R2037RELAY?

Key specifications for R2037RELAY: Overall Height: 0.960 INCHES NOMINAL IN; Nominal Operating Current Rating and Type: 10.0 MILLIAMPERES DC SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Winding Quantity: 1. 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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