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Technical Data Sheet
PartsTable / COMPONENT / 738555
738555 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The RETAINER,ROLLER,BEARING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 642 OVERALL, bore_diameter: 0.6660 INCHES MINIMUM AND 0.6690 INCHES MAXIMUM IN, overall_width: 0.2870 INCHES MINIMUM AND 0.2970 INCHES MAXIMUM IN, outside_diameter: 0.7950 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN, style_designator: ROLLER RETAINER, retainer_fabrication_method: MACHINED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-282-0486, 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
738555
NSN: 3110-00-282-0486
FSC: 3110
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 642 OVERALL
bore_diameter0.6660 INCHES MINIMUM AND 0.6690 INCHES MAXIMUM IN
overall_width0.2870 INCHES MINIMUM AND 0.2970 INCHES MAXIMUM IN
outside_diameter0.7950 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
style_designatorROLLER RETAINER
retainer_piece_quantity1
retainer_fabrication_methodMACHINED
material_document_and_classificationQQ-C-465,ALLOY 642 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-390,ALLOY G6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NSN3110-00-282-0486
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 738555 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
BORE DIAMETER: 0.6660 INCHES MINIMUM AND 0.6690 INCHES MAXIMUM IN
•
RETAINER PIECE QUANTITY: 1
•
MATERIAL: COPPER ALLOY 642 OVERALL
•
OUTSIDE DIAMETER: 0.7950 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROLLER RETAINER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-465,ALLOY 642 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-390,ALLOY G6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODMACHINED
BORE DIAMETER0.6660 INCHES MINIMUM AND 0.6690 INCHES MAXIMUM IN
RETAINER PIECE QUANTITY1
MATERIALCOPPER ALLOY 642 OVERALL
OVERALL WIDTH0.2870 INCHES MINIMUM AND 0.2970 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.7950 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
STYLE DESIGNATORROLLER RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-465,ALLOY 642 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-390,ALLOY G6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
0049487Interchangeable
interchangeable cross-reference
interchangeable
67322Interchangeable
interchangeable cross-reference
interchangeable
49487Interchangeable
interchangeable cross-reference
interchangeable
706611Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 738555?
738555 is a RETAINER,ROLLER,BEARING.
What parts can replace 738555?
There are 4 known substitutes for 738555: 0049487, 67322, 49487 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 738555?
738555 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-282-0486. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026