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Technical Data Sheet
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404K — Technical Data Sheet

✓ 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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include head_type: ANGLE, head_angle_in_deg: 90.0 NOMINAL, rivet_size_for_which_designed: 0.125 IN. DIA IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8512, 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
404K
NSN: 3110-00-144-8512
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
head_typeANGLE
head_angle_in_deg90.0 NOMINAL
rivet_size_for_which_designed0.125 IN. DIA IN
NSN3110-00-144-8512
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 404K · 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
•
BORE DIAMETER: 20.00 MILLIMETERS NOMINAL MM
•
OVERALL OUTSIDE DIAMETER: 72.00 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL OVERALL
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
NONDEFINITIVE SPEC/STD DATA: 111 TYPE AND 1 CLASS AND 00 GRADE
TECHNICAL CHARACTERISTICS
BORE DIAMETER20.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER72.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE SHAPESTRAIGHT
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 1 CLASS AND 00 GRADE
OVERALL WIDTH19.0 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
6404InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5310PL0975983InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
501-000InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7518InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1050002InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1-0252InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 404K?
404K is a BEARING,BALL,ANNULAR.
What parts can replace 404K?
There are 29 known substitutes for 404K: 6404, 5310PL0975983, 501-000 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 404K?
404K is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8512. 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: September 2026