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Technical Data Sheet
PartsTable / COMPONENT / 12805A
12805A ✓ 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 special_features: AC UNIT; STOWAWAY TURBO, end_item_identification: 38 FT SPC-TB FT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0294, 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
12805A
NSN: 3110-00-100-0294
FSC: 3110
CAGE: 44185 — TLD WOLLARD LLC (USA)
SPECIFICATIONS
special_featuresAC UNIT; STOWAWAY TURBO
end_item_identification38 FT SPC-TB FT
NSN3110-00-100-0294
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12805A · 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: 0.0781 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.5433 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
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 RADIUS0.0781 INCHES NOMINAL IN
OUTSIDE DIAMETER3.5433 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OVERALL WIDTH0.6250 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
30055Interchangeable
interchangeable cross-reference
interchangeable
1M7911Interchangeable
interchangeable cross-reference
interchangeable
36AInterchangeable
interchangeable cross-reference
interchangeable
111129Interchangeable
interchangeable cross-reference
interchangeable
17-04617-5Interchangeable
interchangeable cross-reference
interchangeable
17-04617-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12805A?
12805A is a CUP,TAPERED ROLLER BEARING.
What parts can replace 12805A?
There are 25 known substitutes for 12805A: 30055, 1M7911, 36A and 22 more. Substitute compatibility should be verified for your specific system.
Is 12805A still available?
12805A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026