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PartsTable / COMPONENT / U8-4-25
U8-4-25 ✓ 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,COMMUTATOR MICA is a the manufacturer industrial component. Key specifications include material: STEEL, cut_shape: U-SLOT, thickness: 0.025 INCHES NOMINAL IN, outside_diameter: 0.250 INCHES NOMINAL IN, mounting_hole_diameter: 0.125 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 4940-00-278-9808, 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
U8-4-25
NSN: 4940-00-278-9808
FSC: 4940
CAGE: 29695 — RJK CORP (USA)
SPECIFICATIONS
materialSTEEL
cut_shapeU-SLOT
thickness0.025 INCHES NOMINAL IN
outside_diameter0.250 INCHES NOMINAL IN
mounting_hole_diameter0.125 INCHES NOMINAL IN
NSN4940-00-278-9808
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUTTER,MILLING,COMMUTATOR MICA TITLE COMPONENT PN U8-4-25 MFR CUTTER,MILLING,COMMUTA
KEY FEATURES
•
THICKNESS: 0.025 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.125 INCHES NOMINAL IN
•
CUT SHAPE: U-SLOT
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.025 INCHES NOMINAL IN
MATERIALSTEEL
OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.125 INCHES NOMINAL IN
CUT SHAPEU-SLOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MILU17148Interchangeable
interchangeable cross-reference
interchangeable
10TInterchangeable
interchangeable cross-reference
interchangeable
7Interchangeable
interchangeable cross-reference
interchangeable
26-153Interchangeable
interchangeable cross-reference
interchangeable
26-155Interchangeable
interchangeable cross-reference
interchangeable
26-501Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U8-4-25?
U8-4-25 is a CUTTER,MILLING,COMMUTATOR MICA.
What parts can replace U8-4-25?
There are 11 known substitutes for U8-4-25: MILU17148, 10T, 7 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U8-4-25?
U8-4-25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4940-00-278-9808. 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