488749 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

488749: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 35.0 MILLIMETERS NOMINAL MM, overall_width: 21.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-837-2908, 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

488749

NSN: 3110-00-837-2908
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)

SPECIFICATIONS

material	STEEL OVERALL
bore_shape	STRAIGHT
bore_diameter	35.0 MILLIMETERS NOMINAL MM
overall_width	21.0 MILLIMETERS NOMINAL MM
surface_finish	GROUND
locating_feature	NONLOCATING
special_features	FAILURE COULD CAUSE CATASTROPHIC OR CRITICAL FAILURE RESULTING RESULTING IN THE LOSS OF OR SERIOUS DAMAGE TO THE AIRCRAFT OR WEAPON SYSTEM OR AN UNCOMMANDED ENGINE SHUTDOWN THAT JEOPARDIZES SAFETY
style_designator	SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
internal_clearance	0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
overall_outside_diameter	80.0 MILLIMETERS NOMINAL MM
retainer_fabrication_method	MACHINED
criticality_code_justification	FEAT
NSN	3110-00-837-2908

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: MACHINED

•

INTERNAL CLEARANCE: 0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN

•

LOCATING FEATURE: NONLOCATING

•

SURFACE FINISH: GROUND

•

CRITICALITY CODE JUSTIFICATION: FEAT

•

STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE

•

OVERALL OUTSIDE DIAMETER: 80.0 MILLIMETERS NOMINAL MM

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	MACHINED
INTERNAL CLEARANCE	0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
LOCATING FEATURE	NONLOCATING
SURFACE FINISH	GROUND
CRITICALITY CODE JUSTIFICATION	FEAT
STYLE DESIGNATOR	SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
OVERALL WIDTH	21.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER	80.0 MILLIMETERS NOMINAL MM
BORE SHAPE	STRAIGHT
SPECIAL FEATURES	FAILURE COULD CAUSE CATASTROPHIC OR CRITICAL FAILURE RESULTING RESULTING IN THE LOSS OF OR SERIOUS DAMAGE TO THE AIRCRAFT OR WEAPON SYSTEM OR AN UNCOMMANDED ENGINE SHUTDOWN THAT JEOPARDIZES SAFETY

SUBSTITUTES & CROSS-REFERENCES 2

740943Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

740924Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 488749?

488749 is a BEARING,ROLLER,CYLINDRICAL.

What parts can replace 488749?

There are 2 known substitutes for 488749: 740943, 740924. Substitute compatibility should be verified for your specific system.

What is the NSN for 488749?

488749 is cataloged in the U.S. Government catalog under NSN 3110-00-837-2908. This indicates validated use in U.S. government and defense supply chains.

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488749 — BEARING,ROLLER,CYLINDRICAL

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