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BU1319Z15 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

BU1319Z15: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 3.7402 INCHES NOMINAL IN, overall_width: 1.7717 INCHES NOMINAL IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-289-6779, 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
BU1319Z15
NSN: 3110-00-289-6779
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter3.7402 INCHES NOMINAL IN
overall_width1.7717 INCHES NOMINAL IN
surface_finishGROUND
locating_featureNONLOCATING
style_designatorSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
overall_outside_diameter7.8764 INCHES NOMINAL IN
internal_fit-up_designationLOOSE
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.1
NSN3110-00-289-6779
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BU1319Z15 · 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: MACHINED
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 7.8764 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONLOOSE
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
OVERALL WIDTH1.7717 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER7.8764 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER3.7402 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
722100Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BU1319Z15?
BU1319Z15 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace BU1319Z15?
There is 1 known substitute for BU1319Z15: 722100. Substitute compatibility should be verified for your specific system.
What is the NSN for BU1319Z15?
BU1319Z15 is cataloged in the U.S. Government catalog under NSN 3110-00-289-6779. 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.