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Technical Data Sheet
1979663 ✓ 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 TENSIONER PULLEY ASSEMBLY is a the manufacturer industrial component. Key specifications include body_width: 7.750 INCHES NOMINAL IN, body_height: 4.940 INCHES NOMINAL IN, body_length: 10.500 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3950-01-506-8878, 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
1979663
NSN: 3950-01-506-8878
FSC: 3950
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
body_width7.750 INCHES NOMINAL IN
body_height4.940 INCHES NOMINAL IN
body_length10.500 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.188 INCHES NOMINAL SINGLE GROUP IN
winding_operating_current0.75 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
winding_operating_voltage240.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST PRIMARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity8 WIRE LEAD
NSN3950-01-506-8878
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TENSIONER PULLEY ASSEMBLY TITLE COMPONENT PN 1979663 MFR TENSIONER PULLEY ASSEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MPT101Interchangeable
interchangeable cross-reference
interchangeable
1001820Interchangeable
interchangeable cross-reference
interchangeable
0995762Interchangeable
interchangeable cross-reference
interchangeable
244-401Interchangeable
interchangeable cross-reference
interchangeable
211-071Interchangeable
interchangeable cross-reference
interchangeable
220-071Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1979663?
1979663 is a TENSIONER PULLEY ASSEMBLY.
What parts can replace 1979663?
There are 6 known substitutes for 1979663: MPT101, 1001820, 0995762 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1979663?
1979663 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3950-01-506-8878. This indicates validated use in U.S. government and defense supply chains.
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