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121645 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

121645: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL, duty_type: CONTINUOUS, overall_width: 1.437 INCHES NOMINAL IN, overall_height: 2.843 INCHES NOMINAL IN, overall_length: 1.437 INCHES NOMINAL IN, pilot_diameter: 0.298 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-281-9224, 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
121645
NSN: 5365-00-281-9224
NIINs: 002819224, 009850376, 011734725
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 71790 — CURTISS-WRIGHT CORP AIRPLANE DIV (USA)
SPECIFICATIONS
materialSTEEL
duty_typeCONTINUOUS
coil_quantity1
overall_width1.437 INCHES NOMINAL IN
overall_height2.843 INCHES NOMINAL IN
overall_length1.437 INCHES NOMINAL IN
pilot_diameter0.298 INCHES NOMINAL IN
inside_diameter0.213 INCHES NOMINAL IN
winding_quantity1
precious_materialSILVER
surface_treatmentCADMIUM AND CHROMATE
frequency_in_hertz50.0 MINIMUM AND 60.0 MAXIMUM
NSN5365-00-281-9224
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 121645 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 0.354 INCHES NOMINAL IN
•
INNER SERRATION QUANTITY: 13
•
PILOT DIAMETER: 0.298 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.213 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE
•
OUTER SERRATION QUANTITY: 24
•
MATERIAL: STEEL COMP 1117
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.099 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER0.354 INCHES NOMINAL IN
INNER SERRATION QUANTITY13
PILOT DIAMETER0.298 INCHES NOMINAL IN
INSIDE DIAMETER0.213 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE
OUTER SERRATION QUANTITY24
MATERIALSTEEL COMP 1117
SUBSTITUTES & CROSS-REFERENCES 9
RL21SA6Reference document
Same NSN cross-reference
Reference document — Secondary reference
115679Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
204-079Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
605156-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
433267-36Reference document
Same NSN cross-reference
Reference document — Secondary reference
192B343-23Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121645?
121645 is a RELAY,ELECTROMAGNETIC.
What parts can replace 121645?
There are 9 known substitutes for 121645: RL21SA6, 115679, 204-079 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121645?
121645 is cataloged in the U.S. Government catalog under NSN 5365-00-281-9224. 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.