PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C28ARelay,electromagnetic

Te Connectivity Corporation · NSN 5945-00-107-7149 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-107-7149 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-107-7149. Primary manufacturer part number: C28A.
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Load Current Rating at Maximum Rated Voltage: 25.0 AMPERES DC RESISTIVE LOAD
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Winding Quantity: 1
  • Duty Type: CONTINUOUS
  • Unthreaded Mounting Hole Diameter: 0.171 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-107-7149, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-107-7149
Primary Part NumberC28A
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Main Contact Load Current Rating at Maximum Rated Voltage25.0 AMPERES DC RESISTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to Width1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Duty TypeCONTINUOUS
Unthreaded Mounting Hole Diameter0.171 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Coil Quantity1
Nonpile-Up Main Contact Arrangement2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Environmental ProtectionDUSTPROOF
Operating Voltage Rating and Type at Specified Temp26.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Terminal Type and Quantity6 PIN ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts40.0 DC
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2940-00-377-28905570150 INTERCHANGEABLE
Filter Element,fluid
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
C28A PRIMARY Te Connectivity Corporation (USA)
Related Parts
2940-00-377-2890INTERCHANGEABLE
FILTER ELEMENT,FLUID
5570150

Frequently Asked Questions

What is NSN 5945-00-107-7149?

NSN 5945-00-107-7149 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 5945-00-107-7149?

NSN 5945-00-107-7149 has 1 cross-referenced part number: C28A (Te Connectivity Corporation).

What NSN replaces 5945-00-107-7149?

There is 1 known substitute for 5945-00-107-7149: 2940-00-377-2890. Verify interchangeability with system specifications before substitution.

What are the specifications of C28A?

Key specifications for C28A: Main Contact Load Current Rating at Maximum Rated Voltage: 25.0 AMPERES DC RESISTIVE LOAD; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Winding Quantity: 1; Duty Type: CONTINUOUS. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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