PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138C028H01Relay,electromagnetic

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5945-00-424-9461 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-424-9461 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-424-9461. Primary manufacturer part number: 138C028H01.
Features
  • Relay,electromagnetic — FSC 5945
  • Frequency in Hertz: 400.0 NOMINAL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 135.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-424-9461, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 18 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-424-9461
Primary Part Number138C028H01
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Frequency in Hertz400.0 NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Width1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp135.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Class2A SINGLE MOUNTING FACILITY A
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Rating in Volts28.0 DC
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Winding Quantity1
Environmental ProtectionHERMETIC
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Coil Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES DC RESISTIVE LOAD
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-395-1768 INTERCHANGEABLE
Seal,oil
5985-00-434-4321 INTERCHANGEABLE
Attenuator,fixed
5935-00-451-44052034-5005 INTERCHANGEABLE
Connector,receptacle,electrical
Tyco Electronics Corp
5130-00-533-02357000000787 INTERCHANGEABLE
Wheel,peening,rotary
3m Company
5840-00-611-0539 INTERCHANGEABLE
Discharger Assy,pre
2910-00-612-68124L4984 INTERCHANGEABLE
Pressure Primer
Caterpillar Inc Div Caterpillar Defense
5930-00-759-8421722011-1 INTERCHANGEABLE
Switch,pressure
Raytheon Company Div Rmd Strategic
5930-01-030-48079037 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
5310-01-286-7885 INTERCHANGEABLE
Washer,flat
5945-01-323-4775 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
5311-0908-2000 Electronic Controls Corporation (USA)
1350-S794 Hi-G Co Inc Sub of Nytronics Inc (USA)
9037 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
138C028H01 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5330-00-395-1768INTERCHANGEABLE
SEAL,OIL
5985-00-434-4321INTERCHANGEABLE
ATTENUATOR,FIXED
5935-00-451-4405INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2034-5005
5130-00-533-0235INTERCHANGEABLE
WHEEL,PEENING,ROTARY
7000000787
5840-00-611-0539INTERCHANGEABLE
DISCHARGER ASSY,PRE
2910-00-612-6812INTERCHANGEABLE
PRESSURE PRIMER
4L4984
5930-00-759-8421INTERCHANGEABLE
SWITCH,PRESSURE
722011-1
5930-01-030-4807INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
9037
5310-01-286-7885INTERCHANGEABLE
WASHER,FLAT
5945-01-323-4775INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5998-01-339-6355INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
9037
5365-01-341-2197INTERCHANGEABLE
BUSHING,MACHINE THREAD

Frequently Asked Questions

What is NSN 5945-00-424-9461?

NSN 5945-00-424-9461 is a Relay,electromagnetic, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-424-9461?

NSN 5945-00-424-9461 has 4 cross-referenced part numbers: 5311-0908-2000 (Electronic Controls Corporation), 1350-S794 (Hi-G Co Inc Sub of Nytronics Inc), 9037 (Airpax Corporation Llc Dba Airpax Corporation Llc), 138C028H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5945-00-424-9461?

There are 12 known substitutes for 5945-00-424-9461: 5330-00-395-1768, 5985-00-434-4321, 5935-00-451-4405 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138C028H01?

Key specifications for 138C028H01: Overall Width: 1.531 INCHES MAXIMUM IN; Frequency in Hertz: 400.0 NOMINAL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 21 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