PartsTable
Technical Data Sheet
Download PDF

R4Z4 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

R4Z4: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_width: 0.1919 INCHES MINIMUM AND 0.1969 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-227-3501, 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
R4Z4
NSN: 3110-00-227-3501
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 70854 — SCHAEFFLER AEROSPACE USA CORP DIV SCHAEFFLER AEROSPACE USA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_width0.1919 INCHES MINIMUM AND 0.1969 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
special_featuresTORQUE TESTED AND SELECTED,CLASSIFIED AND TESTED BY ASSY MFR AT HIS PLANT
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
overall_outside_diameter0.6248 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
retainer_fabrication_methodCOILED
NSN3110-00-227-3501
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R4Z4 · 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
•
RETAINER FABRICATION METHOD: COILED
•
INTERNAL CLEARANCE: 0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 0.6248 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODCOILED
INTERNAL CLEARANCE0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.1919 INCHES MINIMUM AND 0.1969 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.6248 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESTORQUE TESTED AND SELECTED,CLASSIFIED AND TESTED BY ASSY MFR AT HIS PLANT
BORE DIAMETER0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 3
SR4DZE5366Reference document
Same NSN cross-reference
Reference document — Secondary reference
SR4DZD2519J9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0379-3Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy R4Z4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is R4Z4?
R4Z4 is a BEARING,BALL,ANNULAR.
What parts can replace R4Z4?
There are 3 known substitutes for R4Z4: SR4DZE5366, SR4DZD2519J9, 0379-3. Substitute compatibility should be verified for your specific system.
What is the NSN for R4Z4?
R4Z4 is cataloged in the U.S. Government catalog under NSN 3110-00-227-3501. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — R4Z4

✓ 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.