PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PR1939-3Relay,electromagnetic

Te Connectivity Corporation · NSN 5945-00-450-6375 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-450-6375 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-450-6375. Primary manufacturer part number: PR1939-3.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 30.0 AMPERES AC RESISTIVE LOAD
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Main Contact Maximum Voltage Rating in Volts: 240.0 AC
  • Frequency in Hertz: 60.0 NOMINAL
  • Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-450-6375, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-450-6375
Primary Part NumberPR1939-3
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage30.0 AMPERES AC RESISTIVE LOAD
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Main Contact Maximum Voltage Rating in Volts240.0 AC
Frequency in Hertz60.0 NOMINAL
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Winding Quantity1
Coil Quantity1
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5945-00-072-6082 INTERCHANGEABLE
Relay,electromagnetic
5945-00-081-7365516809-4 INTERCHANGEABLE
Relay,electromagnetic
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5945-00-226-2979 INTERCHANGEABLE
Relay,electromagnetic
5945-00-401-270529-010 INTERCHANGEABLE
Relay,electromagnetic
Georator Llc
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
5945-01-165-8466 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
PR1939-3 Te Connectivity Corporation (USA)
9C56 Pellerin Milnor Corporation (USA)
PR1939-4 Te Connectivity Corporation (USA)
PR1939-2 Te Connectivity Corporation (USA)
DMS 90114B Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
PR-1939-5 Te Connectivity Corporation (USA)
09C056 Pellerin Milnor Corporation (USA)
PR1939-1 Te Connectivity Corporation (USA)
Related Parts
5945-00-072-6082INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-081-7365INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
516809-4
5945-00-226-2979INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-401-2705INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
29-010
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
5945-01-165-8466INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-450-6375?

NSN 5945-00-450-6375 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 5945-00-450-6375?

NSN 5945-00-450-6375 has 8 cross-referenced part numbers: PR1939-3 (Te Connectivity Corporation), 9C56 (Pellerin Milnor Corporation), PR1939-4 (Te Connectivity Corporation), PR1939-2 (Te Connectivity Corporation), DMS 90114B (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)) and 3 more.

What NSN replaces 5945-00-450-6375?

There are 9 known substitutes for 5945-00-450-6375: 5945-00-072-6082, 5945-00-081-7365, 5945-00-226-2979 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PR1939-3?

Key specifications for PR1939-3: Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY; Main Contact Load Current Rating at Maximum Rated Voltage: 30.0 AMPERES AC RESISTIVE LOAD; Overall Width: 2.531 INCHES MAXIMUM IN; Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY. 16 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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