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Technical Data Sheet
PartsTable / COMPONENT / APR-81
APR-81 ✓ 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 CUTTER,MILLING,END is a the manufacturer industrial component. Key specifications include diameter: 0.500 INCHES NOMINAL IN, material: STEEL, cut_length: 3.000 INCHES NOMINAL IN, shank_type: ANY ACCEPTABLE, design_form: SINGLE END, flute_design: HELICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-01-050-9840, 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
APR-81
NSN: 3455-01-050-9840
FSC: 3455
CAGE: 48521 — COLT INDUSTRIES OPERATING CORP PRATT AND WHITNEY MACHINE TOOL DIV
SPECIFICATIONS
diameter0.500 INCHES NOMINAL IN
materialSTEEL
cut_length3.000 INCHES NOMINAL IN
shank_typeANY ACCEPTABLE
design_formSINGLE END
flute_designHELICAL
flute_quantity2
overall_length5.000 INCHES NOMINAL IN
shank_diameter0.500 INCHES NOMINAL IN
helix_directionRIGHT-HAND
cutting_rotation_directionRIGHT-HAND
NSN3455-01-050-9840
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUTTER,MILLING,END TITLE COMPONENT PN APR-81 MFR CUTTER,MILLING,END
KEY FEATURES
•
DESIGN FORM: SINGLE END
•
HELIX DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL
•
SHANK DIAMETER: 0.500 INCHES NOMINAL IN
•
DIAMETER: 0.500 INCHES NOMINAL IN
•
CUT LENGTH: 3.000 INCHES NOMINAL IN
•
FLUTE DESIGN: HELICAL
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN FORMSINGLE END
HELIX DIRECTIONRIGHT-HAND
MATERIALSTEEL
SHANK DIAMETER0.500 INCHES NOMINAL IN
DIAMETER0.500 INCHES NOMINAL IN
CUT LENGTH3.000 INCHES NOMINAL IN
FLUTE DESIGNHELICAL
CUTTING ROTATION DIRECTIONRIGHT-HAND
SHANK TYPEANY ACCEPTABLE
OVERALL LENGTH5.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
PX-0Interchangeable
interchangeable cross-reference
interchangeable
44079Interchangeable
interchangeable cross-reference
interchangeable
7520-00-043-3408Interchangeable
interchangeable cross-reference
interchangeable
D834Interchangeable
interchangeable cross-reference
interchangeable
CB2024-08Interchangeable
interchangeable cross-reference
interchangeable
MS35771-127Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is APR-81?
APR-81 is a CUTTER,MILLING,END.
What parts can replace APR-81?
There are 21 known substitutes for APR-81: PX-0, 44079, 7520-00-043-3408 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for APR-81?
APR-81 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-01-050-9840. 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