PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

974-0345-00Relay,electromagnetic

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5945-00-500-8188 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-500-8188 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-500-8188. Primary manufacturer part number: 974-0345-00.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 27.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.960 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 2 THREADED STUD(S) SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 5.0 AMPERES DC RESISTIVE LOAD
  • Winding DC Resistance Rating: 280.0 OHMS NOMINAL SINGLE WINDING
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-500-8188, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5945-00-500-8188
Primary Part Number974-0345-00
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusCANCELLED
Operating Voltage Rating and Type at Specified Temp27.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length0.960 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES DC RESISTIVE LOAD
Winding DC Resistance Rating280.0 OHMS NOMINAL SINGLE WINDING
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Coil Quantity1
Winding Quantity1
Center to Center Distance Between Mounting Facilities Parallel to Width0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Class2A SINGLE MOUNTING FACILITY A
Main Contact Maximum Voltage Rating in Volts27.5 DC
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Environmental ProtectionHERMETIC
Mounting Facility PatternDIAGONAL SINGLE MOUNTING FACILITY
Pile-Up Main Contact Form Arrangement2C
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5325-00-083-6637223085 INTERCHANGEABLE
Ring,retaining
Eaton Aerospace, Llc Dba Jackson South
2805-00-142-53851213956C1 INTERCHANGEABLE
Ring,piston
Dressta North America Ltd
5985-01-026-76412897218-2 INTERCHANGEABLE
Waveguide Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6515-01-679-1066223085 INTERCHANGEABLE
Splint,thumb
Medical Specialties Incorporated
Cross-Reference Index
Part NumberManufacturer
22308-5 Emerson Electric Co White-Rodgers Div (USA)
691-12-1094 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
974-0345-00 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
651805-005 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
Related Parts
5325-00-083-6637INTERCHANGEABLE
RING,RETAINING
223085
2805-00-142-5385INTERCHANGEABLE
RING,PISTON
1213956C1
5985-01-026-7641INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
2897218-2
6515-01-679-1066INTERCHANGEABLE
SPLINT,THUMB
223085

Frequently Asked Questions

What is NSN 5945-00-500-8188?

NSN 5945-00-500-8188 is a Relay,electromagnetic, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-500-8188?

NSN 5945-00-500-8188 has 4 cross-referenced part numbers: 22308-5 (Emerson Electric Co White-Rodgers Div), 691-12-1094 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 974-0345-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 651805-005 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).

What NSN replaces 5945-00-500-8188?

There are 4 known substitutes for 5945-00-500-8188: 5325-00-083-6637, 2805-00-142-5385, 5985-01-026-7641 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 974-0345-00?

Key specifications for 974-0345-00: Overall Height: 2.250 INCHES NOMINAL IN; Operating Voltage Rating and Type at Specified Temp: 27.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Overall Length: 1.330 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.960 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-500-8188 still in active supply?

NSN 5945-00-500-8188 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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