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Technical Data Sheet
PartsTable / COMPONENT / 10555
10555 ✓ Verified by PartsTable
Trefl · 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: STEEL OVERALL, body_style: HEADSET, COVERED, point_type: CONVENTIONAL, point_angle: 118.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, corner_shape: SQUARE ALL CORNERS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6160, 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
10555
NSN: 3110-00-100-6160
FSC: 3110
CAGE: 64829 — ARVINMERITOR INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleHEADSET, COVERED
point_typeCONVENTIONAL
point_angle118.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
corner_shapeSQUARE ALL CORNERS
flute_length2.000 INCHES NOMINAL IN
inside_length1.750 INCHES NOMINAL IN
overall_width0.500 INCHES NOMINAL IN
flute_quantity2
overall_length3.906 INCHES NOMINAL IN
shank_diameter0.078 INCHES NOMINAL IN
NSN3110-00-100-6160
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 10555 · Trefl ⚠ 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
•
ROLLING ELEMENT DIAMETER: 0.6250 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
•
STYLE DESIGNATOR: BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ROLLING ELEMENT DIAMETER0.6250 INCHES NOMINAL IN
MATERIALSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
STYLE DESIGNATORBALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SPECIAL FEATURESAFBMA STD TOLERANCE FOR BALLS,GRADE 24
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
120390Interchangeable
interchangeable cross-reference
interchangeable
804472Interchangeable
interchangeable cross-reference
interchangeable
55858Interchangeable
interchangeable cross-reference
interchangeable
455858Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
5585-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10555?
10555 is a PISTON,INTERNAL COMBUSTION ENGIN manufactured by Trefl.
What parts can replace 10555?
There are 28 known substitutes for 10555: 120390, 804472, 55858 and 25 more. Substitute compatibility should be verified for your specific system.
Is 10555 still available?
10555 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026