PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55074-1CHANGEARelay,electromagnetic

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5945-00-241-9219 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-241-9219 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-241-9219. Primary manufacturer part number: 55074-1CHANGEA.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Type and Quantity: 3 UNTHREADED STUD SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle: 0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Winding DC Resistance Rating: 155.0 OHMS NOMINAL SINGLE WINDING
  • Main Contact Maximum Voltage Rating in Volts: 150.0 DC
  • Arc Quenching Method: INERT GAS
  • Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-241-9219, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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
NSN5945-00-241-9219
Primary Part Number55074-1CHANGEA
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusCANCELLED
Mounting Facility Type and Quantity3 UNTHREADED STUD SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Winding DC Resistance Rating155.0 OHMS NOMINAL SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts150.0 DC
Arc Quenching MethodINERT GAS
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage10.0 MILLIAMPERES DC RESISTIVE LOAD
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Nominal Operating Current Rating and Type180.0 MILLIAMPERES DC SINGLE WINDING
Duty TypeCONTINUOUS
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Environmental ProtectionHERMETIC
Winding Quantity1
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-278-7770 INTERCHANGEABLE
Cross,pipe
5930-00-392-3985550741 INTERCHANGEABLE
Switch,push-Pull
Volvo Construction Equipment North America, Llc
3110-01-459-532464517 INTERCHANGEABLE
Bearing,ball,annular
Colt's Manufacturing Company, Llc
5995-01-630-856464517 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
KH11223 Te Connectivity Corporation (USA)
55074-1 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
B55074-1CHANGEA L3harris Technologies, Inc Div Space & Airborne Systems (USA)
64-517 Lockheed Electronics Co Inc Information Engineering Div (USA)
55074-1CHANGEA PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
4730-00-278-7770INTERCHANGEABLE
CROSS,PIPE
5930-00-392-3985INTERCHANGEABLE
SWITCH,PUSH-PULL
550741
3110-01-459-5324INTERCHANGEABLE
BEARING,BALL,ANNULAR
64517
5995-01-630-8564INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
64517

Frequently Asked Questions

What is NSN 5945-00-241-9219?

NSN 5945-00-241-9219 is a Relay,electromagnetic, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-241-9219?

NSN 5945-00-241-9219 has 5 cross-referenced part numbers: KH11223 (Te Connectivity Corporation), 55074-1 (L3harris Technologies, Inc Div Space & Airborne Systems), B55074-1CHANGEA (L3harris Technologies, Inc Div Space & Airborne Systems), 64-517 (Lockheed Electronics Co Inc Information Engineering Div), 55074-1CHANGEA (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5945-00-241-9219?

There are 4 known substitutes for 5945-00-241-9219: 4730-00-278-7770, 5930-00-392-3985, 3110-01-459-5324 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55074-1CHANGEA?

Key specifications for 55074-1CHANGEA: Overall Length: 1.656 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 3 UNTHREADED STUD SINGLE MOUNTING FACILITY; Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle: 0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-241-9219 still in active supply?

NSN 5945-00-241-9219 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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