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Technical Data Sheet
PartsTable / COMPONENT / 639183
639183 ✓ 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 material: STEEL COMP 303 OVERALL, shank_length: 1.125 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.875 INCHES MINIMUM IN, overall_length: 1.750 INCHES NOMINAL IN, style_designator: ROUND, CLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0231, 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
639183
NSN: 3110-00-100-0231
FSC: 3110
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
shank_length1.125 INCHES NOMINAL IN
thread_class3A A
thread_length0.875 INCHES MINIMUM IN
overall_length1.750 INCHES NOMINAL IN
style_designatorROUND, CLOSED
thread_directionRIGHT-HAND
eye_outside_width0.500 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
eye_inside_diameter0.195 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN
eye_stock_thickness0.312 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
NSN3110-00-100-0231
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 639183 · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
609124Interchangeable
interchangeable cross-reference
interchangeable
30182Interchangeable
interchangeable cross-reference
interchangeable
150-587GPC182Interchangeable
interchangeable cross-reference
interchangeable
150-573GPC182Interchangeable
interchangeable cross-reference
interchangeable
BB55S49077ALT-PC182Interchangeable
interchangeable cross-reference
interchangeable
152898Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 639183?
639183 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 639183?
There are 20 known substitutes for 639183: 609124, 30182, 150-587GPC182 and 17 more. Substitute compatibility should be verified for your specific system.
Is 639183 still available?
639183 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