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Technical Data Sheet
C21A ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include phase: SINGLE, material: STEEL, body_style: CHAMFERED ENDS, bore_style: INSIDE CHAMFER STRAIGHT-THRU BORE, body_length: 1.4350 INCHES NOMINAL IN, current_type: AC AND DC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-106-6677, 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
C21A
NSN: 5945-00-106-6677
FSC: 5945
CAGE: 74063 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
phaseSINGLE
materialSTEEL
body_styleCHAMFERED ENDS
bore_styleINSIDE CHAMFER STRAIGHT-THRU BORE
body_length1.4350 INCHES NOMINAL IN
current_typeAC AND DC
excitor_typeSEPARATELY EXCITED
housing_typeINCLOSED
bore_diameter0.3120 INCHES NOMINAL IN
document_typeTECHNICAL ORDER
mounting_typeWHEEL
overall_width54.000 INCHES NOMINAL IN
NSN5945-00-106-6677
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN C21A MFR RELAY,ELECTROMAGNETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
K714Interchangeable
interchangeable cross-reference
interchangeable
51028Interchangeable
interchangeable cross-reference
interchangeable
PM-32Interchangeable
interchangeable cross-reference
interchangeable
32600Interchangeable
interchangeable cross-reference
interchangeable
C21AInterchangeable
interchangeable cross-reference
interchangeable
SA144Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C21A?
C21A is a RELAY,ELECTROMAGNETIC.
What parts can replace C21A?
There are 7 known substitutes for C21A: K714, 51028, PM-32 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C21A?
C21A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-106-6677. This indicates validated use in U.S. government and defense supply chains.
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