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Technical Data Sheet
ST81 ✓ 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 measurement_type: DIGITAL, measurement_range: -32.0 TO 760.0 DEG CELSIUS, operating_temp_range: -0.9 TO 50.0 CELSIUS DEGC, switch_type_and_quantity: 1 PUSH BUTTON, part_name_assigned_by_controlling_agency: PORTABLE INFRARED THERMOMETER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5220-00-072-4458, 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
ST81
NSN: 5220-00-072-4458
FSC: 5220
CAGE: 80254 — TEXTRON LYCOMING INC WILLIAMSPORT PLANT (USA)
SPECIFICATIONS
measurement_typeDIGITAL
special_features2 X AA/LR6 BATTERIES OR USB CONNECTION WHEN USED WITH A PC;99 DATA LOGGING POINTS;LASER GUIDED SIGHTING SYSTEM FOR EASY TARGETING WITH 1 PERCENT ACCURACY
measurement_range-32.0 TO 760.0 DEG CELSIUS
operating_temp_range-0.9 TO 50.0 CELSIUS DEGC
switch_type_and_quantity1 PUSH BUTTON
part_name_assigned_by_controlling_agencyPORTABLE INFRARED THERMOMETER
NSN5220-00-072-4458
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN ST81 MFR RELAY,ELECTROMAGNETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
C7AF-11450-A1Interchangeable
interchangeable cross-reference
interchangeable
5481Interchangeable
interchangeable cross-reference
interchangeable
644-1-0086Interchangeable
interchangeable cross-reference
interchangeable
ST81Interchangeable
interchangeable cross-reference
interchangeable
64926Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST81?
ST81 is a RELAY,ELECTROMAGNETIC.
What parts can replace ST81?
There are 5 known substitutes for ST81: C7AF-11450-A1, 5481, 644-1-0086 and 2 more. Substitute compatibility should be verified for your specific system.
Is ST81 still available?
ST81 is currently cancelled.
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