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Technical Data Sheet
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28850-1 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

28850-1: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 14 GAGE GALV STEEL,32.000 IN. LG,12.875 IN.

W,11.875 IN. H,RH IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-5443, 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
28850-1
NSN: 3110-00-156-5443
NIINs: 001565443, 004773564
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 66821 — YALE SECURITY INC. DBA NORTON DOOR CONTROL (USA)
SPECIFICATIONS
general_characteristics_item_description14 GAGE GALV STEEL,32.000 IN. LG,12.875 IN. W,11.875 IN. H,RH IN
NSN3110-00-156-5443
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 28850-1 · 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
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 72.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
NONDEFINITIVE SPEC/STD DATA: 146 TYPE AND 00 GRADE
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH1.1875 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER72.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA146 TYPE AND 00 GRADE
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
SUBSTITUTES & CROSS-REFERENCES 9
954394Reference document
Same NSN cross-reference
Reference document — Secondary reference
5306Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1667463PC5Reference document
Same NSN cross-reference
Reference document — Secondary reference
700424Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
302-1019P1Reference document
Same NSN cross-reference
Reference document — Secondary reference
FFB171Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28850-1?
28850-1 is a BEARING,BALL,ANNULAR.
What parts can replace 28850-1?
There are 9 known substitutes for 28850-1: 954394, 5306, 1667463PC5 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28850-1?
28850-1 is cataloged in the U.S. Government catalog under NSN 3110-00-156-5443. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.