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12273387-3 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

12273387-3: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_width: 0.2812 INCHES NOMINAL IN, style_designator: 4 POINT BALL CONTACT, SOLID INNER AND OUTER RINGS, NON-SEPARABLE, overall_outside_diameter: 0.8750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-079-2899, 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
12273387-3
NSN: 3110-01-079-2899
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 CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
bore_diameter0.3750 INCHES NOMINAL IN
overall_width0.2812 INCHES NOMINAL IN
style_designator4 POINT BALL CONTACT, SOLID INNER AND OUTER RINGS, NON-SEPARABLE
overall_outside_diameter0.8750 INCHES NOMINAL IN
NSN3110-01-079-2899
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12273387-3 · 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: 4 POINT BALL CONTACT, SOLID INNER AND OUTER RINGS, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 0.8750 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
•
BORE DIAMETER: 0.3750 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOR4 POINT BALL CONTACT, SOLID INNER AND OUTER RINGS, NON-SEPARABLE
OVERALL WIDTH0.2812 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER0.8750 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
BORE DIAMETER0.3750 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12273387-3?
12273387-3 is a BEARING,BALL,ANNULAR.
What is the NSN for 12273387-3?
12273387-3 is cataloged in the U.S. Government catalog under NSN 3110-01-079-2899. 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.