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Technical Data Sheet
PartsTable / COMPONENT / KIT4075
KIT4075 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

PARTS KIT,BEARING REPLACEMENT,ME. Key specifications include length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT, end_type: EXTERNAL THREAD SECOND END, material: COPPER CORE CONDUCTOR ALL CONDUCTORS, tip_type: BEVELED, nut_style: KNURLED, body_width: 1.525 INCHES MINIMUM AND 1.535 INCHES MAXIMUM 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 3120-01-280-7973, 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
KIT4075
NSN: 3120-01-280-7973
FSC: 3120
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
end_typeEXTERNAL THREAD SECOND END
materialCOPPER CORE CONDUCTOR ALL CONDUCTORS
tip_typeBEVELED
nut_styleKNURLED
body_width1.525 INCHES MINIMUM AND 1.535 INCHES MAXIMUM IN
body_height0.610 INCHES MAXIMUM IN
body_length2.160 INCHES MINIMUM AND 2.180 INCHES MAXIMUM IN
knurl_width0.125 INCHES NOMINAL IN
nut_diameter0.500 INCHES NOMINAL IN
thread_class2B
usage_designADAPTS RG-8/U COAXIAL TO FIXED POINTS
NSN3120-01-280-7973
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KIT4075 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
4075Interchangeable
interchangeable cross-reference
interchangeable
1922Interchangeable
interchangeable cross-reference
interchangeable
B31-10344-7Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
LS3489Interchangeable
interchangeable cross-reference
interchangeable
S1125597Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KIT4075?
KIT4075 is a PARTS KIT,BEARING REPLACEMENT,ME.
What parts can replace KIT4075?
There are 13 known substitutes for KIT4075: 4075, 1922, B31-10344-7 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KIT4075?
KIT4075 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-280-7973. 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