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Technical Data Sheet
PartsTable / COMPONENT / 830644
830644 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CHASSIS,ELECTRICAL-ELECTRONIC EQ. Key specifications include material: IRON ALLOY 660 OR NICKEL ALLOY 718 NUT, nut_style: FLOATING SELF-LOCKING BARREL, nut_height: 0.437 INCHES MAXIMUM IN, nut_length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, nut_diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, thread_class: 3B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-7415, 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
830644
NSN: 3110-00-155-7415
FSC: 3110
CAGE: 61465 — GARWOOD/FELLER INC GARWOOD WINCH DIV (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OR NICKEL ALLOY 718 NUT
nut_styleFLOATING SELF-LOCKING BARREL
nut_height0.437 INCHES MAXIMUM IN
nut_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
nut_diameter0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_class3B
barrel_height0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresCRADLE MAT'L 6AL-4V TITANIUM PER MI-T-9047 TY 3 COMP/ A V
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE NUT
NSN3110-00-155-7415
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 830644 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 52.00 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL ROLLER
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS ON OUTER, SEPARABLE
•
LOCATING FEATURE: NONLOCATING
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER52.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL ROLLER
MATERIALSTEEL INNER RING
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS ON OUTER, SEPARABLE
LOCATING FEATURENONLOCATING
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE SHAPESTRAIGHT
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS ON OUTER, SEPARABLE
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
MATERIALSTEEL INNER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
L-75Interchangeable
interchangeable cross-reference
interchangeable
70-79Interchangeable
interchangeable cross-reference
interchangeable
LRL75MInterchangeable
interchangeable cross-reference
interchangeable
G250075-1Interchangeable
interchangeable cross-reference
interchangeable
230-304Interchangeable
interchangeable cross-reference
interchangeable
FIL-0-304Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 830644?
830644 is a CHASSIS,ELECTRICAL-ELECTRONIC EQ.
What parts can replace 830644?
There are 34 known substitutes for 830644: L-75, 70-79, LRL75M and 31 more. Substitute compatibility should be verified for your specific system.
Is 830644 still available?
830644 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026