PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2045-1Relay,electromagnetic

Curtiss-Wright Controls Electronic Systems, Inc. · NSN 5945-00-878-4720 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-878-4720 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-878-4720. Primary manufacturer part number: 2045-1.
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Maximum Voltage Rating in Volts: 32.0 DC
  • Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY
  • Features Provided: POLARIZED
  • Operating Voltage Rating and Type at Specified Temp: 32.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Coil Quantity: 1
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle: 2.250 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 5945-00-878-4720, 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 Curtiss-Wright Controls Electronic Systems, Inc.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-878-4720
Primary Part Number2045-1
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerCurtiss-Wright Controls Electronic Systems, Inc.
StatusACTIVE
Main Contact Maximum Voltage Rating in Volts32.0 DC
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Features ProvidedPOLARIZED
Operating Voltage Rating and Type at Specified Temp32.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Winding Quantity1
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Thread Class2A SINGLE MOUNTING FACILITY A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity3 THREADED STUD(S) SINGLE MOUNTING FACILITY
Environmental ProtectionHERMETIC
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4720-00-231-734620451 INTERCHANGEABLE
Hose,preformed
Gates Corporation
4730-00-468-0085389988PC389 INTERCHANGEABLE
Cross,pipe
Naval Sea Systems Command
5950-00-647-9152 INTERCHANGEABLE
Coil,radio Frequency
5940-00-914-9919 INTERCHANGEABLE
Terminal,stud
6240-01-345-2252F13PTT/27K INTERCHANGEABLE
Lamp,fluorescent
Gte Products Corp Sylvania Miniature Lighting Div
1005-01-555-727720451 INTERCHANGEABLE
Lever,release,small Arms
Charles Reed Knight Jr Dba Knight's Armament Company
6680-01-657-49132045-1 INTERCHANGEABLE
Indicator,sight,liquid
Clark-Reliance Llc Dba Jacoby-Tarbox
Cross-Reference Index
Part NumberManufacturer
2045-1 PRIMARY Curtiss-Wright Controls Electronic Systems, Inc. (USA)
Related Parts
4720-00-231-7346INTERCHANGEABLE
HOSE,PREFORMED
20451
4730-00-468-0085INTERCHANGEABLE
CROSS,PIPE
389988PC389
5950-00-647-9152INTERCHANGEABLE
COIL,RADIO FREQUENCY
5940-00-914-9919INTERCHANGEABLE
TERMINAL,STUD
6240-01-345-2252INTERCHANGEABLE
LAMP,FLUORESCENT
F13PTT/27K
1005-01-555-7277INTERCHANGEABLE
LEVER,RELEASE,SMALL ARMS
20451
6680-01-657-4913INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
2045-1

Frequently Asked Questions

What is NSN 5945-00-878-4720?

NSN 5945-00-878-4720 is a Relay,electromagnetic, manufactured by Curtiss-Wright Controls Electronic Systems, Inc., classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-878-4720?

NSN 5945-00-878-4720 has 1 cross-referenced part number: 2045-1 (Curtiss-Wright Controls Electronic Systems, Inc.).

What NSN replaces 5945-00-878-4720?

There are 7 known substitutes for 5945-00-878-4720: 4720-00-231-7346, 4730-00-468-0085, 5950-00-647-9152 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2045-1?

Key specifications for 2045-1: Overall Length: 2.250 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 32.0 DC; Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY; Features Provided: POLARIZED. 18 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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