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Technical Data Sheet
PartsTable / COMPONENT / 21433-53
21433-53 ✓ 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 INTERRUPTER,GROUND FAULT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, special_features: METALLIC HARDNESS RATING ROCKWELL C MIN 50.0 IN. AND MAX 58.0 IN.

IN, style_designator: BALL, rolling_element_diameter: 0.8750 INCHES NOMINAL IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6229, 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
21433-53
NSN: 3110-00-100-6229
FSC: 3110
CAGE: 03848 — ARMA DIV AMBAC INDUSTRIES INC
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
special_featuresMETALLIC HARDNESS RATING ROCKWELL C MIN 50.0 IN. AND MAX 58.0 IN. IN
style_designatorBALL
rolling_element_diameter0.8750 INCHES NOMINAL IN
NSN3110-00-100-6229
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 21433-53 · 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: 0.8750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ROLLING ELEMENT DIAMETER0.8750 INCHES NOMINAL IN
STYLE DESIGNATORBALL
SPECIAL FEATURESMETALLIC HARDNESS RATING ROCKWELL C MIN 50.0 IN. AND MAX 58.0 IN. IN
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
PER40Interchangeable
interchangeable cross-reference
interchangeable
5578052Interchangeable
interchangeable cross-reference
interchangeable
35-866340Q03Interchangeable
interchangeable cross-reference
interchangeable
NAS-451-29Interchangeable
interchangeable cross-reference
interchangeable
51061Interchangeable
interchangeable cross-reference
interchangeable
NAS451Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21433-53?
21433-53 is a INTERRUPTER,GROUND FAULT.
What parts can replace 21433-53?
There are 16 known substitutes for 21433-53: PER40, 5578052, 35-866340Q03 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21433-53?
21433-53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6229. 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