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Technical Data Sheet
PartsTable / COMPONENT / 4321 27/64
4321 27/64 ✓ 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 4321 27/64 is a the manufacturer industrial 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 5133-00-841-8743, 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
4321 27/64
NSN: 5133-00-841-8743
FSC: 5133
CAGE: 03882 — NEW YORK TWIST DRILL INC (USA)
SPECIFICATIONS
Part Number4321 27/64
NSN5133-00-841-8743
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 4321 27/64 TITLE COMPONENT PN 4321 27/64 MFR 4321 27/64
KEY FEATURES
•
SHANK STYLE: STRAIGHT ROUND
•
POINT ANGLE: 118.0 DEGREES NOMINAL
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MATERIAL: CARBIDE OVERALL
•
FLUTE LENGTH: 2.875 INCHES NOMINAL IN
•
FLUTE QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
SHANK STYLESTRAIGHT ROUND
SPECIAL FEATURESSOLID CARBIDE; HEAVY DUTY; FRACTIONAL SIZE 27/64
POINT ANGLE118.0 DEGREES NOMINAL
SPECIFICATION/STANDARD DATA05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALCARBIDE OVERALL
FLUTE LENGTH2.875 INCHES NOMINAL IN
FLUTE QUANTITY2
OVERALL LENGTH4.500 INCHES NOMINAL IN
POINT TYPECONVENTIONAL
CUTTING ROTATION DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
A9541624Interchangeable
interchangeable cross-reference
interchangeable
3-1027Interchangeable
interchangeable cross-reference
interchangeable
1/64BALL 3/32SInterchangeable
interchangeable cross-reference
interchangeable
1111-0006Interchangeable
interchangeable cross-reference
interchangeable
1112-0001Interchangeable
interchangeable cross-reference
interchangeable
7974274Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4321 27/64?
4321 27/64 is a 4321 27/64.
What parts can replace 4321 27/64?
There are 25 known substitutes for 4321 27/64: A9541624, 3-1027, 1/64BALL 3/32S and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4321 27/64?
4321 27/64 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5133-00-841-8743. 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