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Technical Data Sheet
PartsTable / COMPONENT / 803053
803053 ✓ 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include grip_length: 1.75 INCHES NOMINAL IN, handle_length: 0.875 INCHES NOMINAL IN, head_diameter: 1.09375 INCHES NOMINAL IN, shank_diameter: 0.5 INCHES NOMINAL IN, shear_strength: 20700 DOUBLE POUND, hardness_rating: 40.0 ROCKWELL C NOMINAL OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4376, 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
803053
NSN: 3110-00-142-4376
FSC: 3110
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
grip_length1.75 INCHES NOMINAL IN
handle_length0.875 INCHES NOMINAL IN
head_diameter1.09375 INCHES NOMINAL IN
shank_diameter0.5 INCHES NOMINAL IN
shear_strength20700 DOUBLE POUND
detent_quantity1
hardness_rating40.0 ROCKWELL C NOMINAL OVERALL
special_features17-4 PH HEAT TREATED HIGH STRENGTH STAINLESS STEEL BODY, STAINLESS STEEL HANDLE AND BUTTON; MILITARY STANDARD 17984
style_designatorBUTTON
button_handle_diameter0.375 INCHES NOMINAL IN
detent_to_tapered_end_distance0.365 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyLOCKING PIN
NSN3110-00-142-4376
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 803053 · 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
•
BACKFACE CORNER RADIUS: 0.0625 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: DOUBLE CUP, NORMAL ANGLE
•
OUTSIDE DIAMETER: 8.5000 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
OVERALL WIDTH3.1875 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
STYLE DESIGNATORDOUBLE CUP, NORMAL ANGLE
OUTSIDE DIAMETER8.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
10570PC95Interchangeable
interchangeable cross-reference
interchangeable
9195Interchangeable
interchangeable cross-reference
interchangeable
S2603-860341Interchangeable
interchangeable cross-reference
interchangeable
558-7107-22-00-00Interchangeable
interchangeable cross-reference
interchangeable
L11-0004-22Interchangeable
interchangeable cross-reference
interchangeable
1070Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803053?
803053 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 803053?
There are 17 known substitutes for 803053: 10570PC95, 9195, S2603-860341 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803053?
803053 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4376. 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