PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1960505-4Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-956-8254 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-956-8254 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-956-8254. Primary manufacturer part number: 1960505-4.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding DC Resistance Rating: 550.0 OHMS NOMINAL SINGLE WINDING
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
  • Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES DC RESISTIVE LOAD
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Time Delay: 0.003 SECONDS MAXIMUM FIXED RELEASE TIME
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Winding Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-956-8254, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5945-00-956-8254
Primary Part Number1960505-4
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Winding DC Resistance Rating550.0 OHMS NOMINAL SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts28.0 DC
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES DC RESISTIVE LOAD
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Time Delay0.003 SECONDS MAXIMUM FIXED RELEASE TIME
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Winding Quantity1
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 Length1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Coil Quantity1
Time Delay0.0047 SECONDS MAXIMUM FIXED OPERATE TIME
Mounting Facility Type and Quantity2 SLOTTED HOLE SINGLE MOUNTING FACILITY
Mounting Slot Width0.104 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Environmental ProtectionHERMETIC
Terminal Type and Quantity8 PIN ALL FUNCTIONS
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
5945-01-084-9194 INTERCHANGEABLE
Relay,electromagnetic
5945-01-120-0318 INTERCHANGEABLE
Relay,electromagnetic
5945-01-165-8466 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
SC4349-2 Te Connectivity Corporation (USA)
1960505-4 Lockheed Martin Corp (USA)
1960505-4 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
DMS 90114B Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (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
5945-01-084-9194INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-120-0318INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-165-8466INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-956-8254?

NSN 5945-00-956-8254 is a Relay,electromagnetic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-956-8254?

NSN 5945-00-956-8254 has 4 cross-referenced part numbers: SC4349-2 (Te Connectivity Corporation), 1960505-4 (Lockheed Martin Corp), 1960505-4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), DMS 90114B (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).

What NSN replaces 5945-00-956-8254?

There are 8 known substitutes for 5945-00-956-8254: 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 1960505-4?

Key specifications for 1960505-4: Winding DC Resistance Rating: 550.0 OHMS NOMINAL SINGLE WINDING; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES DC RESISTIVE LOAD; Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY. 19 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