PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4877290Relay,electromagnetic

Kalmar AC Inc · NSN 5945-00-240-3003 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-240-3003 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-240-3003. Primary manufacturer part number: 4877290.
Features
  • Relay,electromagnetic — FSC 5945
  • Precious Material and Location: CONTACTS SILVER
  • Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
  • Main Contact Maximum Voltage Rating in Volts: 120.0 AC AND 28.0 DC
  • Mounting Facility Type and Quantity: 2 SLOTTED HOLE SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
  • Duty Type: CONTINUOUS
  • Arc Quenching Method: AIR
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
  • Applications requiring Silver Contact construction
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-240-3003, 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 Kalmar AC Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-240-3003
Primary Part Number4877290
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerKalmar AC Inc
StatusCANCELLED
Precious Material and LocationCONTACTS SILVER
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Main Contact Maximum Voltage Rating in Volts120.0 AC AND 28.0 DC
Mounting Facility Type and Quantity2 SLOTTED HOLE SINGLE MOUNTING FACILITY
Coil Quantity1
Duty TypeCONTINUOUS
Arc Quenching MethodAIR
Fragility FactorMODERATELY RUGGED
Environmental ProtectionDUSTPROOF
Nonpile-Up Main Contact Arrangement3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Precious MaterialSILVER
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Terminal Type and Quantity11 QUICK DISCONNECT, MALE ALL FUNCTIONS
Winding DC Resistance Rating472.0 OHMS NOMINAL SINGLE WINDING
Nominal Operating Current Rating and Type51.0 MILLIAMPERES DC SINGLE WINDING
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Purpose for Which DesignedGENERAL
MaterialSILVER CONTACT
Time Delay0.01 SECONDS NOMINAL FIXED RELEASE TIME
Storage TypeGENERAL PURPOSE WAREHOUSE
Time Delay0.015 SECONDS NOMINAL FIXED OPERATE TIME
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
MaterialPLASTIC CASE
Cubic Measure6.242 CUBIC INCHES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5945-00-365-6259271-7250P001 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
KUP14D55-24 Te Connectivity Corporation (USA)
5945PL1948144 Jednolity Indeks Materialowy - Uniform Material Index (POL)
KUP1405524V Te Connectivity Corporation (USA)
4877290-9 Kalmar AC Inc (USA)
CRF-10-3D24 G General Electro-Components Inc (USA)
KUP14D55-24VDC Te Connectivity Corporation (USA)
5180933-01 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
KUP14D55 Te Connectivity Corporation (USA)
KUP14D55-24V Te Connectivity Corporation (USA)
4877290 PRIMARY Kalmar AC Inc (USA)
Related Parts
5945-00-365-6259INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
271-7250P001

Frequently Asked Questions

What is NSN 5945-00-240-3003?

NSN 5945-00-240-3003 is a Relay,electromagnetic, manufactured by Kalmar AC Inc, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-240-3003?

NSN 5945-00-240-3003 has 10 cross-referenced part numbers: KUP14D55-24 (Te Connectivity Corporation), 5945PL1948144 (Jednolity Indeks Materialowy - Uniform Material Index), KUP1405524V (Te Connectivity Corporation), 4877290-9 (Kalmar AC Inc), CRF-10-3D24 (G General Electro-Components Inc) and 5 more.

What NSN replaces 5945-00-240-3003?

There is 1 known substitute for 5945-00-240-3003: 5945-00-365-6259. Verify interchangeability with system specifications before substitution.

What are the specifications of 4877290?

Key specifications for 4877290: Precious Material and Location: CONTACTS SILVER; Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD; Main Contact Maximum Voltage Rating in Volts: 120.0 AC AND 28.0 DC; Overall Height: 1.406 INCHES MAXIMUM IN. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-240-3003 still in active supply?

NSN 5945-00-240-3003 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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