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Technical Data Sheet
PartsTable / COMPONENT / 185438PC221
185438PC221 ✓ 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 material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.3125 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM IN, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-159-9283, 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
185438PC221
NSN: 3110-00-159-9283
FSC: 3110
CAGE: 30760 — INGERSOLL RAND CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.3125 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
contact_angle25.0 DEGREES MAXIMUM
overall_width0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishUNGROUND
inner_ring_width0.3438 INCHES NOMINAL IN
outer_ring_width0.4062 INCHES NOMINAL IN
special_featuresINNER OR OUTER RINGS COMPOSED OF TWO OR MORE MACHINED PARTS
style_designatorRADIAL AND THRUST, MACHINED INNER RING
overall_outside_diameter1.0469 INCHES MINIMUM AND 1.0519 INCHES MAXIMUM IN
NSN3110-00-159-9283
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 185438PC221 · 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
•
SURFACE FINISH: UNGROUND
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: RADIAL AND THRUST, MACHINED INNER RING
•
BORE DIAMETER: 0.3125 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOAD DIRECTION: ANGULAR
•
INNER RING WIDTH: 0.3438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHUNGROUND
MATERIALSTEEL OVERALL
STYLE DESIGNATORRADIAL AND THRUST, MACHINED INNER RING
BORE DIAMETER0.3125 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
CONTACT ANGLE25.0 DEGREES MAXIMUM
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOAD DIRECTIONANGULAR
INNER RING WIDTH0.3438 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.0469 INCHES MINIMUM AND 1.0519 INCHES MAXIMUM IN
OUTER RING WIDTH0.4062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
R503Interchangeable
interchangeable cross-reference
interchangeable
1906945Interchangeable
interchangeable cross-reference
interchangeable
19D6945Interchangeable
interchangeable cross-reference
interchangeable
04X35Interchangeable
interchangeable cross-reference
interchangeable
HVTS2537-580Interchangeable
interchangeable cross-reference
interchangeable
WP4-0745-23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 185438PC221?
185438PC221 is a BEARING,BALL,ANNULAR.
What parts can replace 185438PC221?
There are 14 known substitutes for 185438PC221: R503, 1906945, 19D6945 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 185438PC221?
185438PC221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-159-9283. 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