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Technical Data Sheet
PartsTable / COMPONENT / A17998
A17998 ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include overall_width: 1.688 INCHES NOMINAL IN, overall_height: 1.125 INCHES NOMINAL IN, overall_length: 5.125 INCHES NOMINAL IN, end_item_identification: TYPE NO. AN/ARN-59, component_type_and_quantity: 1 COIL AND 1 HUB AND 1 PLATE.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3913, 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
A17998
NSN: 3110-00-554-3913
FSC: 3110
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
overall_width1.688 INCHES NOMINAL IN
overall_height1.125 INCHES NOMINAL IN
overall_length5.125 INCHES NOMINAL IN
special_featuresUSAGE DESIGN:ROTATES AROUND CENTER AXIS;MOUNTING CONFIGURATION:SHAFT MTD BY 0.221 IN.DIA HOLE W/2 SETSCREWS SPACED 90 DEG APART;FSC APPLICATION DATA:ANTENNA,RADIO SET,NAVIGATION AIRBORNE IN
end_item_identificationTYPE NO. AN/ARN-59
component_type_and_quantity1 COIL AND 1 HUB AND 1 PLATE
NSN3110-00-554-3913
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A17998 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
399196-2Interchangeable
interchangeable cross-reference
interchangeable
4206Interchangeable
interchangeable cross-reference
interchangeable
TP-1731Interchangeable
interchangeable cross-reference
interchangeable
202230AInterchangeable
interchangeable cross-reference
interchangeable
3389Interchangeable
interchangeable cross-reference
interchangeable
917-LH 5/16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A17998?
A17998 is a BEARING,BALL,ANNULAR.
What parts can replace A17998?
There are 31 known substitutes for A17998: 399196-2, 4206, TP-1731 and 28 more. Substitute compatibility should be verified for your specific system.
Is A17998 still available?
A17998 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