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Technical Data Sheet
PartsTable / COMPONENT / GM16121
GM16121 ✓ 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 BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 0.9998 INCHES MINIMUM AND 1.0001 INCHES MAXIMUM IN, overall_width: 0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, special_features: CLOSED END,EXTRA CAPACITY OUTER RACE,OIL HOLE IN OUTER RACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-442-6890, 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
GM16121
NSN: 3110-00-442-6890
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.9998 INCHES MINIMUM AND 1.0001 INCHES MAXIMUM IN
overall_width0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
special_featuresCLOSED END,EXTRA CAPACITY OUTER RACE,OIL HOLE IN OUTER RACE
style_designatorNON-SEPARABLE, CLOSED END, DRAWN SHELL
overall_outside_diameter1.2450 INCHES MINIMUM AND 1.2454 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
NSN3110-00-442-6890
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: GM16121 · 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
•
ALIGNMENT TYPE: RIGID
•
SURFACE FINISH: GROUND
•
BORE DIAMETER: 0.9998 INCHES MINIMUM AND 1.0001 INCHES MAXIMUM IN
•
RETAINER FABRICATION METHOD: PRESSED
•
STYLE DESIGNATOR: NON-SEPARABLE, CLOSED END, DRAWN SHELL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ALIGNMENT TYPERIGID
SURFACE FINISHGROUND
BORE DIAMETER0.9998 INCHES MINIMUM AND 1.0001 INCHES MAXIMUM IN
SPECIAL FEATURESCLOSED END,EXTRA CAPACITY OUTER RACE,OIL HOLE IN OUTER RACE
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-SEPARABLE, CLOSED END, DRAWN SHELL
MATERIALSTEEL OVERALL
OVERALL WIDTH0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.2450 INCHES MINIMUM AND 1.2454 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
EE6-1Interchangeable
interchangeable cross-reference
interchangeable
1896Interchangeable
Microsoft Stylus Pen For Surface
interchangeable
55172Interchangeable
interchangeable cross-reference
interchangeable
2431-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-13444 TYPE 3Interchangeable
interchangeable cross-reference
interchangeable
243Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GM16121?
GM16121 is a BEARING,ROLLER,NEEDLE.
What parts can replace GM16121?
There are 6 known substitutes for GM16121: EE6-1, 1896, 55172 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GM16121?
GM16121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-442-6890. 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