PartsTable
Technical Data Sheet
121-787 ✓ 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

The BEARING,BALL,ANNULAR is a Hama industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, head_style: HEXAGON, head_height: 0.1500 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN, thread_class: 2A A, bore_diameter: 20.00 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8605, 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
121-787
NSN: 3110-00-144-8605
FSC: 3110
CAGE: 96371 — NI INDUSTRIES INC THERMADOR/WASTE KING DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
head_styleHEXAGON
head_height0.1500 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN
thread_class2A A
bore_diameter20.00 MILLIMETERS NOMINAL MM
overall_width14.0 MILLIMETERS NOMINAL MM
thread_length0.375 INCHES NOMINAL IN
load_directionRADIAL
overall_length0.210 INCHES MAXIMUM IN
surface_finishGROUND
fastener_length0.375 INCHES NOMINAL IN
NSN3110-00-144-8605
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 121-787 · 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
BORE DIAMETER: 20.00 MILLIMETERS NOMINAL MM
SHIELD QUANTITY: 2
INTERNAL FIT-UP DESIGNATION: STANDARD
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY LUBRICATION MATERIAL
SURFACE FINISH: GROUND
BORE SHAPE: STRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER20.00 MILLIMETERS NOMINAL MM
SHIELD QUANTITY2
INTERNAL FIT-UP DESIGNATIONSTANDARD
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY LUBRICATION MATERIAL
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH14.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER47.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
22213CC-W33Interchangeable
interchangeable cross-reference
interchangeable
22217Interchangeable
interchangeable cross-reference
interchangeable
22217CInterchangeable
interchangeable cross-reference
interchangeable
D204-30Interchangeable
interchangeable cross-reference
interchangeable
8338-1Interchangeable
interchangeable cross-reference
interchangeable
F1H-8338-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121-787?
121-787 is a BEARING,BALL,ANNULAR manufactured by Hama.
What parts can replace 121-787?
There are 27 known substitutes for 121-787: 22213CC-W33, 22217, 22217C and 24 more. Substitute compatibility should be verified for your specific system.
Is 121-787 still available?
121-787 is currently cancelled.
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