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PartsTable / COMPONENT / PAC20-4A
PAC20-4A ✓ 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

MILLING MACHINE,HORIZONTAL,PLAIN. Key specifications include color: NEUTRAL LOCATION NOT OTHERWISE SPECIFIED, material: TIN ALLOY, thickness: 0.250 INCHES NOMINAL IN, unit_type: CROWN, bore_shape: STRAIGHT, body_length: 1.000 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 3455-01-073-1181, 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
PAC20-4A
NSN: 3455-01-073-1181
FSC: 3455
CAGE: 64560 — WELDON TOOL CO THE (USA)
SPECIFICATIONS
colorNEUTRAL LOCATION NOT OTHERWISE SPECIFIED
materialTIN ALLOY
thickness0.250 INCHES NOMINAL IN
unit_typeCROWN
bore_shapeSTRAIGHT
body_length1.000 INCHES NOMINAL IN
bore_diameter0.2510 INCHES NOMINAL IN
overall_width1.6250 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
load_directionRADIAL
overall_length5.000 INCHES NOMINAL IN
surface_finishGROUND
NSN3455-01-073-1181
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MILLING MACHINE,HORIZONTAL,PLAIN TITLE COMPONENT PN PAC20-4A MFR MILLING MACHINE,HORIZO
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
427652Interchangeable
interchangeable cross-reference
interchangeable
MILB857TYPEAInterchangeable
interchangeable cross-reference
interchangeable
315-16Interchangeable
interchangeable cross-reference
interchangeable
2282188Interchangeable
interchangeable cross-reference
interchangeable
55325Interchangeable
interchangeable cross-reference
interchangeable
0042864Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PAC20-4A?
PAC20-4A is a MILLING MACHINE,HORIZONTAL,PLAIN.
What parts can replace PAC20-4A?
There are 27 known substitutes for PAC20-4A: 427652, MILB857TYPEA, 315-16 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PAC20-4A?
PAC20-4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-01-073-1181. 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