PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

577R620H05Relay,electromagnetic

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5945-00-018-2361 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-018-2361 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-018-2361. Primary manufacturer part number: 577R620H05.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY
  • Nonpile-Up Main Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
  • Environmental Protection: HERMETIC
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Winding Quantity: 1
  • Time Delay: 30.00 SECONDS NOMINAL FIXED OPERATE TIME
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-018-2361, 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 8 commercial cross-references from 6 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
NSN5945-00-018-2361
Primary Part Number577R620H05
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Environmental ProtectionHERMETIC
Thread Class2A SINGLE MOUNTING FACILITY A
Winding Quantity1
Time Delay30.00 SECONDS NOMINAL FIXED OPERATE TIME
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
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
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity3 THREADED STUD(S) SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Features ProvidedPOLARIZED
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5975-00-097-8512SS11 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5815-00-126-387093181 INTERCHANGEABLE
Door
Lucent Technologies Inc Corporate Headquarters
5350-00-584-4653051144-02432 INTERCHANGEABLE
Cloth,abrasive
3m Company
5340-01-034-230693181 INTERCHANGEABLE
Catch,flush
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
2090-01-098-24589318-1 INTERCHANGEABLE
Gear-Motor Assembly
Cornell-Carr Co., Inc.
5365-01-155-4600 INTERCHANGEABLE
Spacer,ring
Cross-Reference Index
Part NumberManufacturer
1600S543-5 Hi-G Co Inc Sub of Nytronics Inc (USA)
93181 Tempo Instrument Inc Defense Electronics Div (USA)
TD699 Leach International Corp Div Leach International Corporation (USA)
577R620H05 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
TD1076 Leach International Corp Div Leach International Corporation (USA)
91685 Tempo Instrument Inc Defense Electronics Div (USA)
3900J9-108 Bourns Instruments Inc (USA)
93181 B.c. Systems Inc. Dba Bc Systems Inc (USA)
Related Parts
5975-00-097-8512INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
SS11
5815-00-126-3870INTERCHANGEABLE
DOOR
93181
5350-00-584-4653INTERCHANGEABLE
CLOTH,ABRASIVE
051144-02432
5340-01-034-2306INTERCHANGEABLE
CATCH,FLUSH
93181
2090-01-098-2458INTERCHANGEABLE
GEAR-MOTOR ASSEMBLY
9318-1
5365-01-155-4600INTERCHANGEABLE
SPACER,RING

Frequently Asked Questions

What is NSN 5945-00-018-2361?

NSN 5945-00-018-2361 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 5945-00-018-2361?

NSN 5945-00-018-2361 has 8 cross-referenced part numbers: 1600S543-5 (Hi-G Co Inc Sub of Nytronics Inc), 93181 (Tempo Instrument Inc Defense Electronics Div), TD699 (Leach International Corp Div Leach International Corporation), 577R620H05 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), TD1076 (Leach International Corp Div Leach International Corporation) and 3 more.

What NSN replaces 5945-00-018-2361?

There are 6 known substitutes for 5945-00-018-2361: 5975-00-097-8512, 5815-00-126-3870, 5350-00-584-4653 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 577R620H05?

Key specifications for 577R620H05: Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY; Nonpile-Up Main Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY; Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS; Environmental Protection: HERMETIC. 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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