PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KUP-14D55-12Relay,electromagnetic

Te Connectivity Corporation · NSN 5945-01-538-3666 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-538-3666 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-538-3666. Primary manufacturer part number: KUP-14D55-12.
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Load Current Rating at Maximum Rated Voltage: 28.0 AMPERES DC AND 120.0 AMPERES AC RESISTIVE LOAD
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC AND 120.0 AC
  • Precious Material: SILVER
  • Time Delay: 0.01 SECONDS NOMINAL FIXED RELEASE TIME
  • Environmental Protection: DUSTPROOF
  • Duty Type: CONTINUOUS
  • Nonpile-Up Main Contact Arrangement: 3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-538-3666, 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 Te Connectivity Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-538-3666
Primary Part NumberKUP-14D55-12
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Main Contact Load Current Rating at Maximum Rated Voltage28.0 AMPERES DC AND 120.0 AMPERES AC RESISTIVE LOAD
Main Contact Maximum Voltage Rating in Volts28.0 DC AND 120.0 AC
Precious MaterialSILVER
Time Delay0.01 SECONDS NOMINAL FIXED RELEASE TIME
Environmental ProtectionDUSTPROOF
Duty TypeCONTINUOUS
Nonpile-Up Main Contact Arrangement3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Arc Quenching MethodAIR
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-365-6259271-7250P001 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon Co
3120-01-198-2389403783 INTERCHANGEABLE
Bearing,plain,self-Aligning
Allianz Sweeper Company
5950-01-361-1892403783 INTERCHANGEABLE
Transformer,discriminator
Aimtron Systems, Llc
Cross-Reference Index
Part NumberManufacturer
1632093 Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc (USA)
24F2894 Newark Corporation Dba Newark Div Newark (USA)
403783 Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc (USA)
KUP-14D55-12 PRIMARY Te Connectivity Corporation (USA)
Related Parts
5945-00-365-6259INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
271-7250P001
3120-01-198-2389INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
403783
5950-01-361-1892INTERCHANGEABLE
TRANSFORMER,DISCRIMINATOR
403783

Frequently Asked Questions

What is NSN 5945-01-538-3666?

NSN 5945-01-538-3666 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-538-3666?

NSN 5945-01-538-3666 has 4 cross-referenced part numbers: 1632093 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc), 24F2894 (Newark Corporation Dba Newark Div Newark), 403783 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc), KUP-14D55-12 (Te Connectivity Corporation).

What NSN replaces 5945-01-538-3666?

There are 3 known substitutes for 5945-01-538-3666: 5945-00-365-6259, 3120-01-198-2389, 5950-01-361-1892. Verify interchangeability with system specifications before substitution.

What are the specifications of KUP-14D55-12?

Key specifications for KUP-14D55-12: Overall Length: 1.531 INCHES MAXIMUM IN; Main Contact Load Current Rating at Maximum Rated Voltage: 28.0 AMPERES DC AND 120.0 AMPERES AC RESISTIVE LOAD; Main Contact Maximum Voltage Rating in Volts: 28.0 DC AND 120.0 AC; Precious Material: SILVER. 13 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