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12917527 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

12917527: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, bore_diameter: 0.2500 INCHES NOMINAL IN, contact_angle: 12.0 DEGREES NOMINAL, overall_width: 0.4380 INCHES NOMINAL IN, style_designator: NON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING, overall_outside_diameter: 0.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-415-2831, 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
12917527
NSN: 3110-01-415-2831
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
bore_diameter0.2500 INCHES NOMINAL IN
contact_angle12.0 DEGREES NOMINAL
overall_width0.4380 INCHES NOMINAL IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING
overall_outside_diameter0.7500 INCHES NOMINAL IN
standard_tolerance_designationABEC NO.5
NSN3110-01-415-2831
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12917527 · 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
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING
•
OVERALL OUTSIDE DIAMETER: 0.7500 INCHES NOMINAL IN
•
CONTACT ANGLE: 12.0 DEGREES NOMINAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.5
•
BORE DIAMETER: 0.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 440C OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH0.4380 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER0.7500 INCHES NOMINAL IN
CONTACT ANGLE12.0 DEGREES NOMINAL
STANDARD TOLERANCE DESIGNATIONABEC NO.5
BORE DIAMETER0.2500 INCHES NOMINAL IN
MATERIALSTEEL COMP 440C OVERALL
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

No substitute or cross-reference records for this part.

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 12917527?
12917527 is a BEARING,BALL,DUPLEX.
What is the NSN for 12917527?
12917527 is cataloged in the U.S. Government catalog under NSN 3110-01-415-2831. 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.