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W1171A — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

W1171A: 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
W1171A
NSN: 3110-00-159-1687
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (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: W1171A · 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
B39850Same 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
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FREQUENTLY ASKED QUESTIONS
What is W1171A?
W1171A is a BEARING,ROLLER,NEEDLE.
What parts can replace W1171A?
There is 1 known substitute for W1171A: B39850. Substitute compatibility should be verified for your specific system.
What is the NSN for W1171A?
W1171A 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.
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✓ 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.