PartsTable
Technical Data Sheet
138121 ✓ 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 MICROCIRCUIT,DIGITAL is a Hama industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: FULL DOG, thread_class: 3A A, fastener_length: 1.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1870, 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
138121
NSN: 3110-00-156-1870
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleFULL DOG
thread_class3A A
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.188 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
nondefinitive_spec/std_data1 TYPE AND 5 STYLE
NSN3110-00-156-1870
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 138121 · 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
ALIGNMENT TYPE: RIGID
BORE SMALLEST DIAMETER: 35.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS
SURFACE FINISH: GROUND
OVERALL OUTSIDE DIAMETER: 62.0 MILLIMETERS NOMINAL MM
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATOR: GROOVED RACE SURFACE
MATERIAL: STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ALIGNMENT TYPERIGID
BORE SMALLEST DIAMETER35.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER62.0 MILLIMETERS NOMINAL MM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORGROOVED RACE SURFACE
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
OVERALL HEIGHT18.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
WL-PR2Interchangeable
interchangeable cross-reference
interchangeable
PR2Interchangeable
interchangeable cross-reference
interchangeable
1505K24Interchangeable
interchangeable cross-reference
interchangeable
1107FInterchangeable
interchangeable cross-reference
interchangeable
1107Interchangeable
interchangeable cross-reference
interchangeable
138121Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 138121?
138121 is a MICROCIRCUIT,DIGITAL manufactured by Hama.
What parts can replace 138121?
There are 16 known substitutes for 138121: WL-PR2, PR2, 1505K24 and 13 more. Substitute compatibility should be verified for your specific system.
Is 138121 still available?
138121 is currently cancelled.
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