PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-838193-2Relay,electromagnetic

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-01-165-8466 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-165-8466 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-165-8466. Primary manufacturer part number: SM-A-838193-2.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Precious Material and Location: CONTACTS SILVER AND CONTACT SURFACES GOLD
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Purpose for Which Designed: GENERAL
  • Winding Quantity: 1
  • Fragility Factor: MODERATELY RUGGED
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
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 5945-01-165-8466, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-165-8466
Primary Part NumberSM-A-838193-2
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Precious Material and LocationCONTACTS SILVER AND CONTACT SURFACES GOLD
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Purpose for Which DesignedGENERAL
Winding Quantity1
Fragility FactorMODERATELY RUGGED
Main Contact Maximum Voltage Rating in Volts28.0 DC
Precious MaterialGOLD AND SILVER
Cubic Measure1.021 CUBIC INCHES
Environmental ProtectionHERMETIC
Winding DC Resistance Rating900.0 OHMS NOMINAL SINGLE WINDING
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Terminal Type and Quantity8 WIRE HOOK ALL FUNCTIONS
Arc Quenching MethodAIR
Surface TreatmentGOLD CONTACT
MaterialSILVER CONTACT
Main Contact Load Current Rating at Maximum Rated Voltage3.0 AMPERES DC RESISTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle0.700 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Storage TypeGENERAL PURPOSE WAREHOUSE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Coil Quantity1
Duty TypeCONTINUOUS
Unthreaded Mounting Hole Diameter0.144 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.200 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5945-00-072-6082 INTERCHANGEABLE
Relay,electromagnetic
5945-00-226-2979 INTERCHANGEABLE
Relay,electromagnetic
5945-00-401-270529-010 INTERCHANGEABLE
Relay,electromagnetic
Georator Llc
5945-00-450-6375 INTERCHANGEABLE
Relay,electromagnetic
5945-00-878-9074 INTERCHANGEABLE
Relay,electromagnetic
5945-00-956-82541960505-4 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-01-084-9194 INTERCHANGEABLE
Relay,electromagnetic
5945-01-120-0318 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
SM-A-838193-2 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
DMS 90114B Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
FC-4145 Te Connectivity Corporation (USA)
Related Parts
5945-00-072-6082INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-226-2979INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-401-2705INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
29-010
5945-00-450-6375INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-878-9074INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-956-8254INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1960505-4
5945-01-084-9194INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-120-0318INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-165-8466?

NSN 5945-01-165-8466 is a Relay,electromagnetic, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-165-8466?

NSN 5945-01-165-8466 has 3 cross-referenced part numbers: SM-A-838193-2 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), DMS 90114B (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), FC-4145 (Te Connectivity Corporation).

What NSN replaces 5945-01-165-8466?

There are 8 known substitutes for 5945-01-165-8466: 5945-00-072-6082, 5945-00-226-2979, 5945-00-401-2705 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-838193-2?

Key specifications for SM-A-838193-2: Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Overall Width: 1.390 INCHES MAXIMUM IN; Precious Material and Location: CONTACTS SILVER AND CONTACT SURFACES GOLD; Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY. 27 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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