PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65550-04024-103Relay,electromagnetic

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · NSN 5945-00-490-0221 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-490-0221 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-490-0221. Primary manufacturer part number: 65550-04024-103.
Features
  • Relay,electromagnetic — FSC 5945
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
  • Coil Quantity: 1
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Features Provided: POLARIZED
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-490-0221, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN5945-00-490-0221
Primary Part Number65550-04024-103
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
StatusACTIVE
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
Coil Quantity1
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Features ProvidedPOLARIZED
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Winding Quantity1
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Thread Class2A SINGLE MOUNTING FACILITY A
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to Length1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Time Delay1.00 SECONDS NOMINAL FIXED OPERATE TIME
Environmental ProtectionDUSTPROOF
Operating Voltage Rating and Type at Specified Temp32.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Width1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5325-00-200-8771267286 INTERCHANGEABLE
Ring,retaining
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5360-00-333-3977W2C12193 INTERCHANGEABLE
Spring,helical,extension
Cummins Power Generation Inc.
3530-00-359-7375 INTERCHANGEABLE
Cover,side
2910-00-362-277322150 INTERCHANGEABLE
Ring
R. H. Sheppard Co., Inc. Dba Sheppard
4720-01-143-4269 INTERCHANGEABLE
Hose Assembly,nonmetallic
2540-01-217-280012193 INTERCHANGEABLE
Mirror Head,vehicular
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
3120-01-299-7457 INTERCHANGEABLE
Roller,linear-Rotary Motion
3020-01-424-979412193 INTERCHANGEABLE
Gear,spur
Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque
9150-01-733-825612193 INTERCHANGEABLE
Grease,aircraft
Exxon Mobil Corp Div Exxonmobil Product Solutions Company, Aviation Lubricants
Cross-Reference Index
Part NumberManufacturer
65550-04024-103 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
833-00075 Automation Products Group, Inc. (USA)
1600-S-673-3 Hi-G Co Inc Sub of Nytronics Inc (USA)
92343-3 Tempo Instrument Inc Defense Electronics Div (USA)
92343-3 B.c. Systems Inc. Dba Bc Systems Inc (USA)
1219-3 Hi-G Co Inc Sub of Nytronics Inc (USA)
Related Parts
5325-00-200-8771INTERCHANGEABLE
RING,RETAINING
267286
5360-00-333-3977INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
W2C12193
3530-00-359-7375INTERCHANGEABLE
COVER,SIDE
2910-00-362-2773INTERCHANGEABLE
RING
22150
4720-01-143-4269INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
2540-01-217-2800INTERCHANGEABLE
MIRROR HEAD,VEHICULAR
12193
3120-01-299-7457INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
3020-01-424-9794INTERCHANGEABLE
GEAR,SPUR
12193
9150-01-733-8256INTERCHANGEABLE
GREASE,AIRCRAFT
12193

Frequently Asked Questions

What is NSN 5945-00-490-0221?

NSN 5945-00-490-0221 is a Relay,electromagnetic, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-490-0221?

NSN 5945-00-490-0221 has 6 cross-referenced part numbers: 65550-04024-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 833-00075 (Automation Products Group, Inc.), 1600-S-673-3 (Hi-G Co Inc Sub of Nytronics Inc), 92343-3 (Tempo Instrument Inc Defense Electronics Div), 92343-3 (B.c. Systems Inc. Dba Bc Systems Inc) and 1 more.

What NSN replaces 5945-00-490-0221?

There are 9 known substitutes for 5945-00-490-0221: 5325-00-200-8771, 5360-00-333-3977, 3530-00-359-7375 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65550-04024-103?

Key specifications for 65550-04024-103: Overall Length: 3.300 INCHES NOMINAL IN; Terminal Type and Quantity: 8 PIN ALL FUNCTIONS; Main Contact Load Current Rating at Maximum Rated Voltage: 5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD; Coil Quantity: 1. 21 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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