PartsTable
Technical Data Sheet
Download PDF

B39850 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

B39850: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, alignment_type: RIGID, special_features: INNER RING ID COUNTER BORED ON ONE SIDE AND CHAMFERED ON THE OTHER. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-159-1687, 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
B39850
NSN: 3110-00-159-1687
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL OVERALL
alignment_typeRIGID
special_featuresINNER RING ID COUNTER BORED ON ONE SIDE AND CHAMFERED ON THE OTHER
NSN3110-00-159-1687
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B39850 · 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
•
ALIGNMENT TYPE: RIGID
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
ALIGNMENT TYPERIGID
SPECIAL FEATURESINNER RING ID COUNTER BORED ON ONE SIDE AND CHAMFERED ON THE OTHER
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
W1171ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy B39850?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is B39850?
B39850 is a BEARING,ROLLER,NEEDLE.
What parts can replace B39850?
There is 1 known substitute for B39850: W1171A. Substitute compatibility should be verified for your specific system.
What is the NSN for B39850?
B39850 is cataloged in the U.S. Government catalog under NSN 3110-00-159-1687. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — B39850

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.