PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 043440
043440 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL COMP 440C OR STEEL COMP 440A OR STEEL COMP 440B OVERALL A, cone_width: 1.1406 INCHES NOMINAL IN, bore_diameter: 3.7500 INCHES NOMINAL IN, special_features: AFBMA STANDARD TOLERANCE FOR BALLS,GRADE 48, style_designator: BALL, cone_corner_radius: 0.1200 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3595, 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
043440
NSN: 3110-00-100-3595
FSC: 3110
CAGE: 02248 — MOBILE DRILLING COMPANY INC DBA FOREMOST-MOBILE (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OR STEEL COMP 440A OR STEEL COMP 440B OVERALL A
cone_width1.1406 INCHES NOMINAL IN
bore_diameter3.7500 INCHES NOMINAL IN
special_featuresAFBMA STANDARD TOLERANCE FOR BALLS,GRADE 48
style_designatorBALL
cone_corner_radius0.1200 INCHES NOMINAL IN
rolling_element_diameter0.1250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
material_document_and_classification66,AISI/SAE 440A FED STD 1ST MATERIAL RESPONSE OR 66,AISI/SAE 440C FED STD 2ND MATERIAL RESPONSE OR 66,AISI/SAE 440B FED STD 3RD MATERIAL RESPONSE OVERALL A
NSN3110-00-100-3595
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 043440 · 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
•
BORE DIAMETER: 3.7500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1200 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
CONE WIDTH: 1.1406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER3.7500 INCHES NOMINAL IN
CONE CORNER RADIUS0.1200 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
CONE WIDTH1.1406 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
K21075Interchangeable
interchangeable cross-reference
interchangeable
21075Interchangeable
interchangeable cross-reference
interchangeable
9194770-83Interchangeable
interchangeable cross-reference
interchangeable
MS19060-4808Interchangeable
interchangeable cross-reference
interchangeable
40401-4Interchangeable
interchangeable cross-reference
interchangeable
2351188Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 043440?
043440 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 043440?
There are 23 known substitutes for 043440: K21075, 21075, 9194770-83 and 20 more. Substitute compatibility should be verified for your specific system.
Is 043440 still available?
043440 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