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Technical Data Sheet
PartsTable / COMPONENT / RB-329
RB-329 ✓ 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 ADAPTER,ELECTRICAL CONDUIT is a the manufacturer industrial component. Key specifications include end_type: INTERNAL THREAD SECOND END, material: STEEL, overall_length: 0.812 INCHES NOMINAL IN, special_features: METALLIC HARDNESS RATING ROCKWELL C MIN 60.0 IN. AND MAX 67.0 IN.

IN, style_designator: THREAD TO THREAD REDUCER, surface_treatment: CADMIUM. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-0998, 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
RB-329
NSN: 3110-00-198-0998
FSC: 3110
CAGE: 55948 — BOTOMAN MFG CO INC (USA)
SPECIFICATIONS
end_typeINTERNAL THREAD SECOND END
materialSTEEL
overall_length0.812 INCHES NOMINAL IN
special_featuresMETALLIC HARDNESS RATING ROCKWELL C MIN 60.0 IN. AND MAX 67.0 IN. IN
style_designatorTHREAD TO THREAD REDUCER
surface_treatmentCADMIUM
supplementary_featuresEND ITEM B-1 AIRCRAFT SUPPORT EQUIPMENT
rolling_element_diameter0.2810 INCHES NOMINAL IN
conduit_type_accommodatedRIGID METALLIC THICKWALL SECOND END
item_accommodated_trade_size0.750 INCHES SECOND END IN
hazardous_locations/environmental_protectionEXPLOSION PROOF NEC CL.I, GP.CD;CL.II, GP.EFG
NSN3110-00-198-0998
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RB-329 · 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
•
ROLLING ELEMENT DIAMETER: 0.2810 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ROLLING ELEMENT DIAMETER0.2810 INCHES NOMINAL IN
SPECIAL FEATURESMETALLIC HARDNESS RATING ROCKWELL C MIN 60.0 IN. AND MAX 67.0 IN. IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
RE-52Interchangeable
interchangeable cross-reference
interchangeable
359-SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB-329?
RB-329 is a ADAPTER,ELECTRICAL CONDUIT.
What parts can replace RB-329?
There are 2 known substitutes for RB-329: RE-52, 359-S. Substitute compatibility should be verified for your specific system.
What is the NSN for RB-329?
RB-329 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-0998. 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