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Technical Data Sheet
PartsTable / COMPONENT / 51001-01
51001-01 ✓ 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 OVERALL, hook_thickness: 0.218 INCHES NOMINAL IN, overall_length: 5.500 INCHES NOMINAL IN, opening_diameter: 1.094 INCHES NOMINAL IN, special_features: SINGLE ENDED; FOR SLOTTED OR ROCKER LUG COUPLINGS ON 1 AND 1-1/2 IN. FIRE HOSES IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-003-9049, 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
51001-01
NSN: 3110-00-003-9049
FSC: 3110
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hook_thickness0.218 INCHES NOMINAL IN
overall_length5.500 INCHES NOMINAL IN
opening_diameter1.094 INCHES NOMINAL IN
special_featuresSINGLE ENDED; FOR SLOTTED OR ROCKER LUG COUPLINGS ON 1 AND 1-1/2 IN. FIRE HOSES IN
NSN3110-00-003-9049
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 51001-01 · 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
•
OUTSIDE DIAMETER: 2.3500 INCHES MINIMUM AND 2.3700 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY G6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
RETAINER PIECE QUANTITY: 1
•
STYLE DESIGNATOR: ROLLER RETAINER
•
BORE DIAMETER: 2.0710 INCHES MINIMUM AND 2.0740 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 952 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.3500 INCHES MINIMUM AND 2.3700 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY G6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
RETAINER PIECE QUANTITY1
STYLE DESIGNATORROLLER RETAINER
BORE DIAMETER2.0710 INCHES MINIMUM AND 2.0740 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 952 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
HY2Interchangeable
interchangeable cross-reference
interchangeable
510-0101Interchangeable
interchangeable cross-reference
interchangeable
NFES 0234Interchangeable
interchangeable cross-reference
interchangeable
2A910Interchangeable
interchangeable cross-reference
interchangeable
NFES 0235Interchangeable
interchangeable cross-reference
interchangeable
2A811Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51001-01?
51001-01 is a RETAINER,ROLLER,BEARING.
What parts can replace 51001-01?
There are 7 known substitutes for 51001-01: HY2, 510-0101, NFES 0234 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51001-01?
51001-01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-003-9049. 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