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Technical Data Sheet
PartsTable / MODIFICATION KIT,MISCELLANEOUS S / 3-6581 REF 16
3-6581 REF 16 ✓ 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 HEATER is a the manufacturer industrial component. Key specifications include wattage_rating: 50.0 WATTS, overall_diameter: 3.8 INCHES NOMINAL IN, special_features: 3.8" DIA HEATER, end_item_identification: WHISTLE, SHIP, voltage_in_volts_and_current_type: 110.0 AC, part_name_assigned_by_controlling_agency: HEATER, WHISTLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2090-01-598-9593, 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
3-6581 REF 16
NSN: 2090-01-598-9593
FSC: 2090 — MODIFICATION KIT,MISCELLANEOUS S
CAGE: 75214 — KAHLENBERG INDUSTRIES, INC. DBA KAHLENBERG INDUSTRIES INC (USA)
SPECIFICATIONS
wattage_rating50.0 WATTS
overall_diameter3.8 INCHES NOMINAL IN
special_features3.8" DIA HEATER
end_item_identificationWHISTLE, SHIP
voltage_in_volts_and_current_type110.0 AC
part_name_assigned_by_controlling_agencyHEATER, WHISTLE
NSN2090-01-598-9593
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEATER TITLE COMPONENT PN 3-6581 REF 16 MFR HEATER
KEY FEATURES
•
OVERALL DIAMETER: 3.8 INCHES NOMINAL IN
•
WATTAGE RATING: 50.0 WATTS
•
VOLTAGE IN VOLTS AND CURRENT TYPE: 110.0 AC
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONWHISTLE, SHIP
OVERALL DIAMETER3.8 INCHES NOMINAL IN
SPECIAL FEATURES3.8" DIA HEATER
PART NAME ASSIGNED BY CONTROLLING AGENCYHEATER, WHISTLE
WATTAGE RATING50.0 WATTS
VOLTAGE IN VOLTS AND CURRENT TYPE110.0 AC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
53010Interchangeable
interchangeable cross-reference
interchangeable
318-10Interchangeable
interchangeable cross-reference
interchangeable
1845Interchangeable
interchangeable cross-reference
interchangeable
954034-2Interchangeable
interchangeable cross-reference
interchangeable
60582-G1-1Interchangeable
interchangeable cross-reference
interchangeable
L30900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-6581 REF 16?
3-6581 REF 16 is a HEATER.
What parts can replace 3-6581 REF 16?
There are 7 known substitutes for 3-6581 REF 16: 53010, 318-10, 1845 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-6581 REF 16?
3-6581 REF 16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2090-01-598-9593. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026