PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

173-3Relay,electromagnetic

Te Connectivity Corporation · NSN 5945-00-816-4256 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-816-4256 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-816-4256. Primary manufacturer part number: 173-3.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding Quantity: 1
  • Nonpile-Up Main Contact Arrangement: 16 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Nominal Operating Current Rating and Type: 154.0 MILLIAMPERES DC SINGLE WINDING
  • Duty Type: CONTINUOUS
  • Winding DC Resistance Rating: 650.0 OHMS NOMINAL SINGLE WINDING
  • Operating Voltage Rating and Type at Specified Temp: 100.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Coil Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-816-4256, 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 2 commercial cross-references from 2 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
NSN5945-00-816-4256
Primary Part Number173-3
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Winding Quantity1
Nonpile-Up Main Contact Arrangement16 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Nominal Operating Current Rating and Type154.0 MILLIAMPERES DC SINGLE WINDING
Duty TypeCONTINUOUS
Winding DC Resistance Rating650.0 OHMS NOMINAL SINGLE WINDING
Operating Voltage Rating and Type at Specified Temp100.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Energizing Element Power Rating15.4 WATTS
Purpose for Which DesignedGENERAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-089-69071733-1 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Rockwell Collins, Inc. Dba Rc Displays Systems
5120-00-409-3742 INTERCHANGEABLE
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4820-00-411-2681 INTERCHANGEABLE
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5998-00-444-2835361078-2 INTERCHANGEABLE
Electronic Components Assembly
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5315-00-597-570615015 INTERCHANGEABLE
Key,machine
Triumph Engine Control Systems Llc
5905-00-787-0220B12J750 INTERCHANGEABLE
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Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5935-00-917-54372088-0000-00 INTERCHANGEABLE
Adapter,connector
Tyco Electronics Corp
5930-01-014-01871995217 INTERCHANGEABLE
Switch Assembly
General Motors Llc Dba General Motors Llc
5342-01-163-07791733 INTERCHANGEABLE
Bracket,deck,winch
Ingersoll-Rand Co Material Handling Div
5305-01-169-9094 INTERCHANGEABLE
Screw
Cross-Reference Index
Part NumberManufacturer
173-3 Te Connectivity Corporation (USA)
T7099 Stone Safety Corp (USA)
Related Parts
5905-00-089-6907INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
1733-1
5120-00-409-3742INTERCHANGEABLE
EXTRACTOR,CIRCUIT C
4820-00-411-2681INTERCHANGEABLE
DISK,VALVE
5998-00-444-2835INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
361078-2
5315-00-597-5706INTERCHANGEABLE
KEY,MACHINE
15015
5905-00-787-0220INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
B12J750
5935-00-917-5437INTERCHANGEABLE
ADAPTER,CONNECTOR
2088-0000-00
5930-01-014-0187INTERCHANGEABLE
SWITCH ASSEMBLY
1995217
5342-01-163-0779INTERCHANGEABLE
BRACKET,DECK,WINCH
1733
5305-01-169-9094INTERCHANGEABLE
SCREW
5975-01-183-5370INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
8424
3040-01-325-9353INTERCHANGEABLE
BRAKE SHOE

Frequently Asked Questions

What is NSN 5945-00-816-4256?

NSN 5945-00-816-4256 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 5945-00-816-4256?

NSN 5945-00-816-4256 has 2 cross-referenced part numbers: 173-3 (Te Connectivity Corporation), T7099 (Stone Safety Corp).

What NSN replaces 5945-00-816-4256?

There are 12 known substitutes for 5945-00-816-4256: 5905-00-089-6907, 5120-00-409-3742, 4820-00-411-2681 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 173-3?

Key specifications for 173-3: Winding Quantity: 1; Nonpile-Up Main Contact Arrangement: 16 POLE, DOUBLE THROW, ONE POSITION MOMENTARY; Nominal Operating Current Rating and Type: 154.0 MILLIAMPERES DC SINGLE WINDING; Duty Type: CONTINUOUS. 9 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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