PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

577R620H07Relay,electromagnetic

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5945-00-044-5783 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-044-5783 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-044-5783. Primary manufacturer part number: 577R620H07.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.828 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Terminal Type and Quantity: 5 PIN ALL FUNCTIONS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-044-5783, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-044-5783
Primary Part Number577R620H07
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Coil Quantity1
Center to Center Distance Between Mounting Facilities Parallel to Length0.828 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Width0.828 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Thread Class2A SINGLE MOUNTING FACILITY A
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Time Delay3.00 SECONDS NOMINAL FIXED OPERATE TIME
Features ProvidedPOLARIZED
Winding Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6210-00-643-2059 INTERCHANGEABLE
Lens,light
5985-00-793-3983AES30724-02 INTERCHANGEABLE
Horn,waveguide
Aerospace Engineering & Support Inc Div Aerospace Engineering and Support, Inc.
5961-01-058-1034TD-702 INTERCHANGEABLE
Semiconductor Devices,unitized
Sprague Electric Co World Hqs
4920-01-300-194592111 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5120-01-368-2330445-2 INTERCHANGEABLE
Bit,screwdriver
Apex Tool Group, Llc
Cross-Reference Index
Part NumberManufacturer
TD702 Leach International Corp Div Leach International Corporation (USA)
92111 Tempo Instrument Inc Defense Electronics Div (USA)
93183 B.c. Systems Inc. Dba Bc Systems Inc (USA)
577R620H07 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
93183 Tempo Instrument Inc Defense Electronics Div (USA)
1600S543-7 Hi-G Co Inc Sub of Nytronics Inc (USA)
TD-1078 Leach International Corp Div Leach International Corporation (USA)
Related Parts
6210-00-643-2059INTERCHANGEABLE
LENS,LIGHT
5985-00-793-3983INTERCHANGEABLE
HORN,WAVEGUIDE
AES30724-02
5961-01-058-1034INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
TD-702
4920-01-300-1945INTERCHANGEABLE
TEST PROGRAM SET
92111
5120-01-368-2330INTERCHANGEABLE
BIT,SCREWDRIVER
445-2

Frequently Asked Questions

What is NSN 5945-00-044-5783?

NSN 5945-00-044-5783 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 5945-00-044-5783?

NSN 5945-00-044-5783 has 7 cross-referenced part numbers: TD702 (Leach International Corp Div Leach International Corporation), 92111 (Tempo Instrument Inc Defense Electronics Div), 93183 (B.c. Systems Inc. Dba Bc Systems Inc), 577R620H07 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 93183 (Tempo Instrument Inc Defense Electronics Div) and 2 more.

What NSN replaces 5945-00-044-5783?

There are 5 known substitutes for 5945-00-044-5783: 6210-00-643-2059, 5985-00-793-3983, 5961-01-058-1034 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 577R620H07?

Key specifications for 577R620H07: Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Coil Quantity: 1. 20 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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