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Technical Data Sheet
666157-321 ✓ 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

HEATING ELEMENT,ELECTRICAL,NONIM. Key specifications include phase: SINGLE SINGLE VOLTAGE, width: 7.906 INCHES NOMINAL IN, length: 28.172 INCHES NOMINAL IN, material: RUBBER SYNTHETIC RESISTANCE WIRE, body_style: STANDARD ELEMENT, terminal_length: 6.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-232-4890, 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
666157-321
NSN: 4520-00-232-4890
FSC: 4520
CAGE: 14100 — STROMBERG-CARLSON CORP A PLESSEY TELECOMMUNICATIONS CO (USA)
SPECIFICATIONS
phaseSINGLE SINGLE VOLTAGE
width7.906 INCHES NOMINAL IN
length28.172 INCHES NOMINAL IN
materialRUBBER SYNTHETIC RESISTANCE WIRE
body_styleSTANDARD ELEMENT
terminal_length6.000 INCHES NOMINAL IN
element_quantity1
heat_control_typeHEAT SWITCH
terminal_quantity2
fsc_application_dataRADIO NAVIGATION EQUIPMENT NONAIRBORNE,ANURN3
mounting_method_styleTERMINAL MOUNTED
element_connection_styleWIRE LEAD
NSN4520-00-232-4890
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEATING ELEMENT,ELECTRICAL,NONIM TITLE COMPONENT PN 666157-321 MFR HEATING ELEMENT,ELECTR
KEY FEATURES
BODY STYLE: STANDARD ELEMENT
ELEMENT QUANTITY: 1
ELEMENT CONNECTION STYLE: WIRE LEAD
TERMINAL LENGTH: 6.000 INCHES NOMINAL IN
PHASE: SINGLE SINGLE VOLTAGE
WIDTH: 7.906 INCHES NOMINAL IN
ELEMENT RADIATION SPECTRUM: NONINFRARED
FSC APPLICATION DATA: RADIO NAVIGATION EQUIPMENT NONAIRBORNE,ANURN3
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLESTANDARD ELEMENT
ELEMENT QUANTITY1
ELEMENT CONNECTION STYLEWIRE LEAD
TERMINAL LENGTH6.000 INCHES NOMINAL IN
PHASESINGLE SINGLE VOLTAGE
WIDTH7.906 INCHES NOMINAL IN
ELEMENT RADIATION SPECTRUMNONINFRARED
FSC APPLICATION DATARADIO NAVIGATION EQUIPMENT NONAIRBORNE,ANURN3
TERMINAL QUANTITY2
VOLTAGE IN VOLTS AND CURRENT TYPE115.0 AC OR 117.0 AC SINGLE VOLTAGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
2-9161Interchangeable
interchangeable cross-reference
interchangeable
02 09161Interchangeable
interchangeable cross-reference
interchangeable
22347Interchangeable
interchangeable cross-reference
interchangeable
0BT436Interchangeable
interchangeable cross-reference
interchangeable
25023Interchangeable
interchangeable cross-reference
interchangeable
0889606Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 666157-321?
666157-321 is a HEATING ELEMENT,ELECTRICAL,NONIM.
What parts can replace 666157-321?
There are 14 known substitutes for 666157-321: 2-9161, 02 09161, 22347 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 666157-321?
666157-321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-232-4890. This indicates validated use in U.S. government and defense supply chains.
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