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Technical Data Sheet
PartsTable / COMPONENT / 445987
445987 ✓ 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 material: STEEL BALL, bore_shape: STRAIGHT, flange_width: 0.0170 INCHES NOMINAL IN, bore_diameter: 0.0937 INCHES NOMINAL IN, overall_width: 0.0625 INCHES NOMINAL IN, load_direction: RADIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-679-4154, 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
445987
NSN: 3110-00-679-4154
FSC: 3110
CAGE: 94580 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE-MINNEAPOLIS (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
flange_width0.0170 INCHES NOMINAL IN
bore_diameter0.0937 INCHES NOMINAL IN
overall_width0.0625 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
flange_outside_diameter0.2340 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
outer_ring_outside_diameter0.1875 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-679-4154
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 445987 · 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
•
MATERIAL: STEEL CORROSION RESISTING RETAINER
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
FLANGE OUTSIDE DIAMETER: 0.2340 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING RETAINER
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
MATERIALSTEEL OUTER RING
FLANGE OUTSIDE DIAMETER0.2340 INCHES NOMINAL IN
MATERIALSTEEL INNER RING
OVERALL WIDTH0.0625 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
STANDARD TOLERANCE DESIGNATIONABEC NO.5
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MIL-B-81793/8Interchangeable
interchangeable cross-reference
interchangeable
1788709-1Interchangeable
interchangeable cross-reference
interchangeable
MS27656T17F99SInterchangeable
interchangeable cross-reference
interchangeable
10131504Interchangeable
interchangeable cross-reference
interchangeable
MS27656T17B99SInterchangeable
interchangeable cross-reference
interchangeable
SFR133Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 445987?
445987 is a BEARING,BALL,ANNULAR.
What parts can replace 445987?
There are 6 known substitutes for 445987: MIL-B-81793/8, 1788709-1, MS27656T17F99S and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 445987?
445987 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-679-4154. 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