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739477 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

739477: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 ROLLER, bore_shape: STRAIGHT, bore_diameter: 1.7715 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN, overall_width: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-104-9863, 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
739477
NSN: 3110-00-104-9863
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 ROLLER
bore_shapeSTRAIGHT
bore_diameter1.7715 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN
overall_width0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
surface_finishGROUND
locating_featureNONLOCATING
special_featuresSILVER PLATE CAGE LANDING SURF AND ROLLER POCKETS PER AMS 2412 0.0005-0.0015 THK. NO STRIKE METAL REQD. BAKE AT 475-500F FOR 2HRS TO CHECK FOR BOND
style_designatorSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
internal_clearance0.0013 INCHES MINIMUM RADIAL AND 0.0021 INCHES MAXIMUM RADIAL IN
overall_outside_diameter2.6769 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
standard_tolerance_designationRBEC NO.5
material_document_and_classificationAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
NSN3110-00-104-9863
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 739477 · 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: 0.0013 INCHES MINIMUM RADIAL AND 0.0021 INCHES MAXIMUM RADIAL IN
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6440 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
TECHNICAL CHARACTERISTICS
INTERNAL CLEARANCE0.0013 INCHES MINIMUM RADIAL AND 0.0021 INCHES MAXIMUM RADIAL IN
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4616 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
OVERALL WIDTH0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER2.6769 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
387450Reference document
Same NSN cross-reference
Reference document — Secondary reference
408449Reference document
Same NSN cross-reference
Reference document — Secondary reference
767211Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
408448Reference document
Same NSN cross-reference
Reference document — Secondary reference
387399Reference 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 739477?
739477 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 739477?
There are 5 known substitutes for 739477: 387450, 408449, 767211 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 739477?
739477 is cataloged in the U.S. Government catalog under NSN 3110-00-104-9863. This indicates validated use in U.S. government and defense supply chains.
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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.