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MCJ-2 ✓ 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 BIT,ROCK DRILL is a the manufacturer industrial component. Key specifications include material: STEEL, cutting_end_type: FOUR CUTTING EDGES, attachment_method: THREADED SHOULDER DRIVE, features_provided: TUNGSTEN CARBIDE INSERTS, drilled_hole_diameter: 2.000 INCHES IN, cleaning_hole_location_and_quantity: 1 CENTER AND 4 SIDE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3820-00-239-7189, 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
MCJ-2
NSN: 3820-00-239-7189
FSC: 3820
CAGE: 06626 — BRUNNER AND LAY INC (USA)
SPECIFICATIONS
materialSTEEL
cutting_end_typeFOUR CUTTING EDGES
attachment_methodTHREADED SHOULDER DRIVE
features_providedTUNGSTEN CARBIDE INSERTS
drilled_hole_diameter2.000 INCHES IN
cleaning_hole_location_and_quantity1 CENTER AND 4 SIDE
manufacturer_thread_design_designationTIMKEN ROLLER BEARING CO SERIES H
NSN3820-00-239-7189
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BIT,ROCK DRILL TITLE COMPONENT PN MCJ-2 MFR BIT,ROCK DRILL
KEY FEATURES
•
CLEANING HOLE LOCATION AND QUANTITY: 1 CENTER AND 4 SIDE
•
MATERIAL: STEEL
•
DRILLED HOLE DIAMETER: 2.000 INCHES IN
•
FEATURES PROVIDED: TUNGSTEN CARBIDE INSERTS
•
ATTACHMENT METHOD: THREADED SHOULDER DRIVE
•
MANUFACTURER THREAD DESIGN DESIGNATION: TIMKEN ROLLER BEARING CO SERIES H
•
CUTTING END TYPE: FOUR CUTTING EDGES
TECHNICAL CHARACTERISTICS (FLIS)
CLEANING HOLE LOCATION AND QUANTITY1 CENTER AND 4 SIDE
MATERIALSTEEL
DRILLED HOLE DIAMETER2.000 INCHES IN
FEATURES PROVIDEDTUNGSTEN CARBIDE INSERTS
ATTACHMENT METHODTHREADED SHOULDER DRIVE
MANUFACTURER THREAD DESIGN DESIGNATIONTIMKEN ROLLER BEARING CO SERIES H
CUTTING END TYPEFOUR CUTTING EDGES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MC2Interchangeable
interchangeable cross-reference
interchangeable
MILG25561Interchangeable
interchangeable cross-reference
interchangeable
G58941Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-8498Interchangeable
interchangeable cross-reference
interchangeable
09-17420C3Interchangeable
interchangeable cross-reference
interchangeable
X18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MCJ-2?
MCJ-2 is a BIT,ROCK DRILL.
What parts can replace MCJ-2?
There are 16 known substitutes for MCJ-2: MC2, MILG25561, G58941 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MCJ-2?
MCJ-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3820-00-239-7189. 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