PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

577R620H08Relay,electromagnetic

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5945-00-044-5788 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-044-5788 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-044-5788. Primary manufacturer part number: 577R620H08.
Features
  • Relay,electromagnetic — FSC 5945
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
  • Coil Quantity: 1
  • Duty Type: CONTINUOUS
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.140 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-044-5788, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 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
NSN5945-00-044-5788
Primary Part Number577R620H08
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Coil Quantity1
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to Length1.140 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to Width0.648 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Class2A SINGLE MOUNTING FACILITY A
Frequency in Hertz400.0 NOMINAL
Time Delay0.15 SECONDS MAXIMUM FIXED RELEASE TIME
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Winding Quantity1
Environmental ProtectionHERMETIC
Time Delay1.40 MINUTES NOMINAL FIXED OPERATE TIME
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6210-00-299-3915206-0112-500 INTERCHANGEABLE
Lens,light
Dialight Corporation
5895-00-412-8620123259-1 INTERCHANGEABLE
Decoder Subassembly
Bae Systems Information and Electronic Systems Integration Inc.
5305-01-077-4707931-84 INTERCHANGEABLE
Screw,machine
Avionics Specialties, Inc.
5962-01-089-1267 INTERCHANGEABLE
Microcircuit,digital
5340-01-420-6673R1-4100M INTERCHANGEABLE
Hinge,butt
Valad Electric Heating Corp.
2810-01-421-866092112 INTERCHANGEABLE
Valve,poppet,engine
Textron Aviation Inc
5310-01-445-584392-11-2 INTERCHANGEABLE
Washer,split
Curtiss-Wright Controls Integrated Sensing, Inc.
6550-01-566-366492112 INTERCHANGEABLE
Controls,reactive,non-Reactive,h
Inverness Medical- Biostar, Inc. Dba Biostar
Cross-Reference Index
Part NumberManufacturer
93184 Tempo Instrument Inc Defense Electronics Div (USA)
EPC-11682 Edo Artisan Inc (USA)
TD703 Leach International Corp Div Leach International Corporation (USA)
577R620H08 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
TD1079 Leach International Corp Div Leach International Corporation (USA)
93184 B.c. Systems Inc. Dba Bc Systems Inc (USA)
92112 Tempo Instrument Inc Defense Electronics Div (USA)
1600S543-8 Hi-G Co Inc Sub of Nytronics Inc (USA)
EPC-11682 Artisan Controls Corp (USA)
92112 Mcclarin Plastics, Inc. (USA)
Related Parts
6210-00-299-3915INTERCHANGEABLE
LENS,LIGHT
206-0112-500
5895-00-412-8620INTERCHANGEABLE
DECODER SUBASSEMBLY
123259-1
5305-01-077-4707INTERCHANGEABLE
SCREW,MACHINE
931-84
5962-01-089-1267INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5340-01-420-6673INTERCHANGEABLE
HINGE,BUTT
R1-4100M
2810-01-421-8660INTERCHANGEABLE
VALVE,POPPET,ENGINE
92112
5310-01-445-5843INTERCHANGEABLE
WASHER,SPLIT
92-11-2
6550-01-566-3664INTERCHANGEABLE
CONTROLS,REACTIVE,NON-REACTIVE,H
92112

Frequently Asked Questions

What is NSN 5945-00-044-5788?

NSN 5945-00-044-5788 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 5945-00-044-5788?

NSN 5945-00-044-5788 has 10 cross-referenced part numbers: 93184 (Tempo Instrument Inc Defense Electronics Div), EPC-11682 (Edo Artisan Inc), TD703 (Leach International Corp Div Leach International Corporation), 577R620H08 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), TD1079 (Leach International Corp Div Leach International Corporation) and 5 more.

What NSN replaces 5945-00-044-5788?

There are 8 known substitutes for 5945-00-044-5788: 6210-00-299-3915, 5895-00-412-8620, 5305-01-077-4707 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 577R620H08?

Key specifications for 577R620H08: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY; Overall Height: 1.210 INCHES MAXIMUM IN; Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD; Coil Quantity: 1. 22 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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