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Technical Data Sheet
PartsTable / COMPONENT / A8538-2
A8538-2 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include shape: STRAIGHT, material: ALUMINUM BODY, overall_length: 3.312 INCHES MAXIMUM IN, mounting_method: UNTHREADED HOLE(S), overall_diameter: 1.609 INCHES NOMINAL IN, light_beam_motion: FIXED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0747, 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
A8538-2
NSN: 3110-00-100-0747
FSC: 3110
CAGE: 76760 — NEW VENTURE GEAR INC NEW PROCESS GEAR DIV (USA)
SPECIFICATIONS
shapeSTRAIGHT
materialALUMINUM BODY
overall_length3.312 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)
overall_diameter1.609 INCHES NOMINAL IN
light_beam_motionFIXED
voltage_rating_in_volts28.0 DC NOMINAL
terminal_type_and_quantity1 SCREW
lamp_base_type_accommodatedSINGLE CONTACT BAYONET CANDELABRA
furnished_items_and_quantity1 RETAINER SPRING AND 1 GASKET
lamp_type_accommodated_and_quantity1 INCANDESCENT
NSN3110-00-100-0747
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A8538-2 · 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
•
BORE DIAMETER: 1.3750 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
CONE WIDTH: 1.0100 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
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)
BORE DIAMETER1.3750 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE CORNER RADIUS0.0312 INCHES NOMINAL IN
CONE WIDTH1.0100 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
12910Interchangeable
interchangeable cross-reference
interchangeable
8A91001Interchangeable
interchangeable cross-reference
interchangeable
30023Interchangeable
interchangeable cross-reference
interchangeable
2793Interchangeable
interchangeable cross-reference
interchangeable
897DPC14Interchangeable
interchangeable cross-reference
interchangeable
1212DLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A8538-2?
A8538-2 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace A8538-2?
There are 28 known substitutes for A8538-2: 12910, 8A91001, 30023 and 25 more. Substitute compatibility should be verified for your specific system.
Is A8538-2 still available?
A8538-2 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