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1R4 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1R4: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5945-00-769-0856, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1R4
NSN: 5945-00-769-0856
FSC: 5945 — Relays and Solenoids
CAGE: 73949 — GUARDIAN ELECTRIC MANUFACTURING CO DIV GUARDIAN ELECTRIC MFG CO (USA)
SPECIFICATIONS
coil_quantity1
winding_quantity1
NSN5945-00-769-0856
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 1R4 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
COIL QUANTITY: 1
•
WINDING QUANTITY: 1
TECHNICAL CHARACTERISTICS
COIL QUANTITY1
WINDING QUANTITY1
OTHER ITEMS IN FSC 5945 — Relays and Solenoids
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5945-00-000-0093 5945-00-001-1891 5945-00-001-2622 5945-00-001-2795 5945-00-001-2806 5945-00-001-2938 5945-00-001-3015 5945-00-001-3016
SUBSTITUTES & CROSS-REFERENCES 2
JHP39-781Reference document
Same NSN cross-reference
Reference document — Secondary reference
IR4INTReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1R4?
1R4 is a RELAY,ELECTROMAGNETIC.
What parts can replace 1R4?
There are 2 known substitutes for 1R4: JHP39-781, IR4INT. Substitute compatibility should be verified for your specific system.
What is the NSN for 1R4?
1R4 is cataloged in the U.S. Government catalog under NSN 5945-00-769-0856. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.