PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66C43042Relay,electromagnetic

Ogden Air Logistics Center · NSN 5945-00-017-0527 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-017-0527 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-017-0527. Primary manufacturer part number: 66C43042.
Features
  • Relay,electromagnetic — FSC 5945
  • Terminal Type and Quantity: 14 PIN CONTACTS
  • Winding DC Resistance Rating: 230.0 OHMS NOMINAL SINGLE WINDING
  • Duty Type: INTERMITTENT
  • Features Provided: LATCHING CONTACTS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 5.0 AMPERES DC INDUCTIVE LOAD
  • Terminal Type and Quantity: 2 WIRE LEAD ENERGIZING ELEMENT
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-017-0527, 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 Ogden Air Logistics Center. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-017-0527
Primary Part Number66C43042
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerOgden Air Logistics Center
StatusACTIVE
Terminal Type and Quantity14 PIN CONTACTS
Winding DC Resistance Rating230.0 OHMS NOMINAL SINGLE WINDING
Duty TypeINTERMITTENT
Features ProvidedLATCHING CONTACTS
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES DC INDUCTIVE LOAD
Terminal Type and Quantity2 WIRE LEAD ENERGIZING ELEMENT
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Coil Quantity2
Nominal Operating Current Rating and Type100.0 MILLIAMPERES DC SINGLE WINDING
Winding Quantity1
Environmental ProtectionDUSTPROOF
Main Contact Maximum Voltage Rating in Volts24.0 DC
Unthreaded Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6110-00-080-749311073597 INTERCHANGEABLE
Control-Indicator Subassembly
Us Army Aviation and Missile Command
5999-00-201-372434797-1 INTERCHANGEABLE
Cap,electrical
Raytheon Company Dba Raytheon
5940-00-204-916243350-11 INTERCHANGEABLE
Terminal,lug
Hydro-Aire Aerospace Corp
4730-00-224-73230960-0034 INTERCHANGEABLE
Nipple,tube
Victor Equipment Co
5360-00-246-9557 INTERCHANGEABLE
Spring,helical,extension
3030-00-529-0296 INTERCHANGEABLE
Belt,v
4920-00-609-8649 INTERCHANGEABLE
Load Bank Assy,heat
5315-00-811-3439C5-1 INTERCHANGEABLE
Pin,spring
Roller Bearing Co of America, Inc Div Pic Design
5945-00-924-4416 INTERCHANGEABLE
Relay
5935-01-011-4748C-51 INTERCHANGEABLE
Connector,receptacle,electrical
Hoffman Engineering, Llc Dba Hoffman Engineering Llc
Cross-Reference Index
Part NumberManufacturer
15-3006-1 Libby Power Systems, Llc (USA)
C5-1 313 Aerospace, Llc Div Aero-Mach Tco Manufacturing D/b/a 313 Aerospace (USA)
66C43042 Sacramento Air Logistics Center Sm-Alc/liil (USA)
RSX1677 Struthers-Dunn Inc. (USA)
C5-1 Aero-Mach Tco Manufacturing Inc (USA)
66C43042 PRIMARY Ogden Air Logistics Center (USA)
66C43042 Warner Robins Air Logistics Center (USA)
Related Parts
6110-00-080-7493INTERCHANGEABLE
CONTROL-INDICATOR SUBASSEMBLY
11073597
5999-00-201-3724INTERCHANGEABLE
CAP,ELECTRICAL
34797-1
5940-00-204-9162INTERCHANGEABLE
TERMINAL,LUG
43350-11
4730-00-224-7323INTERCHANGEABLE
NIPPLE,TUBE
0960-0034
5360-00-246-9557INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3030-00-529-0296INTERCHANGEABLE
BELT,V
4920-00-609-8649INTERCHANGEABLE
LOAD BANK ASSY,HEAT
5315-00-811-3439INTERCHANGEABLE
PIN,SPRING
C5-1
5945-00-924-4416INTERCHANGEABLE
RELAY
5935-01-011-4748INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C-51
3950-01-363-9691INTERCHANGEABLE
GIN,POLE
4010-01-526-4626INTERCHANGEABLE
CHAIN,WELDLESS
C51-RING

Frequently Asked Questions

What is NSN 5945-00-017-0527?

NSN 5945-00-017-0527 is a Relay,electromagnetic, manufactured by Ogden Air Logistics Center, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-017-0527?

NSN 5945-00-017-0527 has 7 cross-referenced part numbers: 15-3006-1 (Libby Power Systems, Llc), C5-1 (313 Aerospace, Llc Div Aero-Mach Tco Manufacturing D/b/a 313 Aerospace), 66C43042 (Sacramento Air Logistics Center Sm-Alc/liil), RSX1677 (Struthers-Dunn Inc.), C5-1 (Aero-Mach Tco Manufacturing Inc) and 2 more.

What NSN replaces 5945-00-017-0527?

There are 12 known substitutes for 5945-00-017-0527: 6110-00-080-7493, 5999-00-201-3724, 5940-00-204-9162 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66C43042?

Key specifications for 66C43042: Terminal Type and Quantity: 14 PIN CONTACTS; Winding DC Resistance Rating: 230.0 OHMS NOMINAL SINGLE WINDING; Duty Type: INTERMITTENT; Features Provided: LATCHING CONTACTS. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com