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74398-01 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

74398-01: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.0398 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM IN, overall_width: 0.0459 INCHES MINIMUM AND 0.0469 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-640-8039, 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
74398-01
NSN: 3110-00-640-8039
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 35351 — GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.0398 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM IN
overall_width0.0459 INCHES MINIMUM AND 0.0469 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
special_featuresSELECTED,CLASSIFIED & TESTED BY THE ASSY MFR AT HIS PLANT
style_designatorLOADING GROOVE, NON-SEPARABLE
internal_clearance0.0004 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
overall_outside_diameter0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
standard_tolerance_designationABEC NO.5
NSN3110-00-640-8039
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 74398-01 · 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
•
INTERNAL CLEARANCE: 0.0004 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
INTERNAL CLEARANCE0.0004 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.0459 INCHES MINIMUM AND 0.0469 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESSELECTED,CLASSIFIED & TESTED BY THE ASSY MFR AT HIS PLANT
STANDARD TOLERANCE DESIGNATIONABEC NO.5
BORE DIAMETER0.0398 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
12W16K47-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2K5Reference document
Same NSN cross-reference
Reference document — Secondary reference
12K47Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74398-01?
74398-01 is a BEARING,BALL,ANNULAR.
What parts can replace 74398-01?
There are 3 known substitutes for 74398-01: 12W16K47-12, 2K5, 12K47. Substitute compatibility should be verified for your specific system.
What is the NSN for 74398-01?
74398-01 is cataloged in the U.S. Government catalog under NSN 3110-00-640-8039. This indicates validated use in U.S. government and defense supply chains.
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