PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 113938
113938 ✓ Verified by PartsTable
Hama · 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

- A pleasant way to be woken up when travelling<br>- Travelling alarm clock with analogue time and alarm time display<br>- Fluorescent hour and minute hand; second hand (not fluorescent)<br>- White dial with Arabic numerals This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-6780, 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
113938
NSN: 3110-00-156-6780
FSC: 3110
CAGE: 71790 — CURTISS-WRIGHT CORP AIRPLANE DIV (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
bore_diameter20.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width12.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
overall_outside_diameter42.00 MILLIMETERS NOMINAL MM
standard_tolerance_designationABEC NO.1
NSN3110-00-156-6780
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 113938 · Hama ⚠ 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
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT ANGLE25.0 DEGREES MAXIMUM
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
MATERIALSTEEL INNER RING
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL BALL
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER20.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
120 1-1/16Interchangeable
interchangeable cross-reference
interchangeable
R51Interchangeable
interchangeable cross-reference
interchangeable
404Interchangeable
interchangeable cross-reference
interchangeable
46168Interchangeable
interchangeable cross-reference
interchangeable
111325Interchangeable
interchangeable cross-reference
interchangeable
TA10190Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 113938?
113938 is a BEARING,BALL,ANNULAR manufactured by Hama.
What parts can replace 113938?
There are 12 known substitutes for 113938: 120 1-1/16, R51, 404 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 113938?
113938 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-6780. 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