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Technical Data Sheet
PartsTable / COMPONENT / B34
B34 ✓ 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,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include angle: 42.0 DEGREES, color: TAN, US ARMY, 499 OVERALL, material: BRASS OVERALL, nut_style: HEXAGON, body_width: 1.625 INCHES NOMINAL IN, nut_height: 0.188 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3074, 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
B34
NSN: 3110-00-120-3074
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
angle42.0 DEGREES
colorTAN, US ARMY, 499 OVERALL
materialBRASS OVERALL
nut_styleHEXAGON
body_width1.625 INCHES NOMINAL IN
nut_height0.188 INCHES NOMINAL IN
body_height3.500 INCHES NOMINAL IN
body_length1.875 INCHES NOMINAL IN
thread_class2B
bore_diameter0.1872 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
color_patternOPERATIONAL CAMOUFLAGE
largest_width0.795 INCHES SINGLE END IN
NSN3110-00-120-3074
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B34 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
BORE DIAMETER: 0.1875 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
•
MATERIAL: STEEL OVERALL
•
OVERALL OUTSIDE DIAMETER: 0.3438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER0.1875 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OVERALL WIDTH0.2500 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER0.3438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
B3-4Interchangeable
interchangeable cross-reference
interchangeable
B34GInterchangeable
interchangeable cross-reference
interchangeable
10015524Interchangeable
interchangeable cross-reference
interchangeable
10015524-013Interchangeable
interchangeable cross-reference
interchangeable
50412Interchangeable
interchangeable cross-reference
interchangeable
12Z330PC30Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B34?
B34 is a BEARING,ROLLER,NEEDLE.
What parts can replace B34?
There are 21 known substitutes for B34: B3-4, B34G, 10015524 and 18 more. Substitute compatibility should be verified for your specific system.
Is B34 still available?
B34 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