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Technical Data Sheet
28-393 ✓ 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

CUTTER,MILLING,WOODRUFF KEYSEAT. Key specifications include width: 0.280 INCHES NOMINAL IN, handle: FURNISHED, height: 0.094 INCHES NOMINAL IN, length: 0.217 INCHES NOMINAL IN, material: PLASTIC ENCLOSURE, thickness: 0.938 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-189-9143, 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
28-393
NSN: 3455-00-189-9143
FSC: 3455
CAGE: 48521 — COLT INDUSTRIES OPERATING CORP PRATT AND WHITNEY MACHINE TOOL DIV
SPECIFICATIONS
width0.280 INCHES NOMINAL IN
handleFURNISHED
height0.094 INCHES NOMINAL IN
length0.217 INCHES NOMINAL IN
materialPLASTIC ENCLOSURE
thickness0.938 INCHES NOMINAL IN
body_styleSTRIP TYPE
bore_shapeSTRAIGHT
drive_typeSPANNER
head_styleHEADLESS (SETSCREW)
shell_typeSOLID
body_height0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
NSN3455-00-189-9143
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUTTER,MILLING,WOODRUFF KEYSEAT TITLE COMPONENT PN 28-393 MFR CUTTER,MILLING,WOODRUF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
40534Interchangeable
interchangeable cross-reference
interchangeable
FFB171Interchangeable
interchangeable cross-reference
interchangeable
8009Interchangeable
interchangeable cross-reference
interchangeable
C8009X1Interchangeable
interchangeable cross-reference
interchangeable
9626BB0440-3Interchangeable
interchangeable cross-reference
interchangeable
4200Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28-393?
28-393 is a CUTTER,MILLING,WOODRUFF KEYSEAT.
What parts can replace 28-393?
There are 30 known substitutes for 28-393: 40534, FFB171, 8009 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28-393?
28-393 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-189-9143. This indicates validated use in U.S. government and defense supply chains.
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