PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11778Relay,electromagnetic

Thales Usa, Inc. Div Air Mobility Solutions ("ams") · NSN 5945-00-189-4538 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-189-4538 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-189-4538. Primary manufacturer part number: 11778.
Features
  • Relay,electromagnetic — FSC 5945
  • Coil Quantity: 1
  • Winding DC Resistance Rating: 125.0 OHMS NOMINAL SINGLE WINDING
  • Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES DC RESISTIVE LOAD
  • Nominal Thread Size: 0.164 INCHES SINGLE MOUNTING FACILITY IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Terminal Type and Quantity: 16 PIN ALL FUNCTIONS
  • Thread Class: 2B SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-189-4538, 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 Thales Usa, Inc. Div Air Mobility Solutions ("ams"). Government technical data includes 15 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-189-4538
Primary Part Number11778
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerThales Usa, Inc. Div Air Mobility Solutions ("ams")
StatusACTIVE
Coil Quantity1
Winding DC Resistance Rating125.0 OHMS NOMINAL SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES DC RESISTIVE LOAD
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Terminal Type and Quantity16 PIN ALL FUNCTIONS
Thread Class2B SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp8.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Winding Quantity1
Nominal Operating Current Rating and Type50.0 MILLIAMPERES DC SINGLE WINDING
Duty TypeCONTINUOUS
Pile-Up Main Contact Form Arrangement1B2A AND 1A1E1A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3455-00-009-0222 INTERCHANGEABLE
File,rotary
3010-00-482-1152 INTERCHANGEABLE
Coupling,shaft,flexible
4030-01-072-116911778 INTERCHANGEABLE
Hook,chain,s
Hindley Manufacturing Company Inc
5998-01-136-091011778 INTERCHANGEABLE
Circuit Card Assembly
L3harris Technologies, Inc. Dba Harris Corporation
4820-01-223-0593 INTERCHANGEABLE
Valve Assembly,manifold
7310-01-564-888211778 INTERCHANGEABLE
Stove,multi-Fuel Burner
Mountain Safety Research Inc
Cross-Reference Index
Part NumberManufacturer
11778 PRIMARY Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
2SR46A1 Olympic Controls Corp (USA)
Related Parts
3455-00-009-0222INTERCHANGEABLE
FILE,ROTARY
3010-00-482-1152INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
4030-01-072-1169INTERCHANGEABLE
HOOK,CHAIN,S
11778
5998-01-136-0910INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
11778
4820-01-223-0593INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
7310-01-564-8882INTERCHANGEABLE
STOVE,MULTI-FUEL BURNER
11778

Frequently Asked Questions

What is NSN 5945-00-189-4538?

NSN 5945-00-189-4538 is a Relay,electromagnetic, manufactured by Thales Usa, Inc. Div Air Mobility Solutions ("ams"), classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-189-4538?

NSN 5945-00-189-4538 has 2 cross-referenced part numbers: 11778 (Thales Usa, Inc. Div Air Mobility Solutions ("ams")), 2SR46A1 (Olympic Controls Corp).

What NSN replaces 5945-00-189-4538?

There are 6 known substitutes for 5945-00-189-4538: 3455-00-009-0222, 3010-00-482-1152, 4030-01-072-1169 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11778?

Key specifications for 11778: Coil Quantity: 1; Winding DC Resistance Rating: 125.0 OHMS NOMINAL SINGLE WINDING; Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES DC RESISTIVE LOAD; Overall Width: 1.280 INCHES NOMINAL IN. 18 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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