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Technical Data Sheet
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21163-4 — BEARING,BALL,ANNULAR

✓ Government record, cited
dbramante1928 · TAPERED BEARING
PRODUCT OVERVIEW

21163-4: BEARING,BALL,ANNULAR.

The full-grain leather Frederiksberg3 is our slimmest folio case for iPhone. Its timeless design provides you with numerous viewing angles, via the stand function, and features an innovative section behind the cradle for two credit cards. Made from full-grain leather the case features magnetic closure to deliver a very sleek, yet desirable look that improves with age.

dbramante1928 produces full-grain leather products, respecting the core values of strength, durability, functionality and style. Designed in Denmark, they are handcrafted by skilled craftsmen, using the best materials and only full-grain Indian leather. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-860-6961, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
21163-4
NSN: 3110-00-860-6961
NIINs: 008606961, 013028191
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identification4935-01-012-9486; TEST KIT,UNIVERSAL; 10177632
NSN3110-00-860-6961
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 21163-4 · dbramante1928 ⚠ 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
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RETAINER FABRICATION METHOD: MACHINED
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INTERNAL CLEARANCE: 0.0003 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
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SURFACE FINISH: GROUND
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STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
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OVERALL OUTSIDE DIAMETER: 80.0 MILLIMETERS NOMINAL MM
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BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0003 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH18.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER80.0 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER40.00 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 2
261127Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
111-04002-9907Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21163-4?
21163-4 is a BEARING,BALL,ANNULAR manufactured by dbramante1928.
What parts can replace 21163-4?
There are 2 known substitutes for 21163-4: 261127, 111-04002-9907. Substitute compatibility should be verified for your specific system.
What is the NSN for 21163-4?
21163-4 is cataloged in the U.S. Government catalog under NSN 3110-00-860-6961. This indicates validated use in U.S. government and defense supply chains.
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