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Technical Data Sheet
PartsTable / COMPONENT / AT7T
AT7T ✓ 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 material: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL, bore_diameter: 0.4375 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 0.6250 INCHES NOMINAL IN, outer_ring_width: 0.5310 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2804, 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
AT7T
NSN: 3110-00-227-2804
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
bore_diameter0.4375 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
inner_ring_width0.6250 INCHES NOMINAL IN
outer_ring_width0.5310 INCHES NOMINAL IN
style_designatorAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
lubrication_materialGREASE
overall_outside_diameter0.9375 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
specification/standard_data96906-MS24461 GOVERNMENT STANDARD
NSN3110-00-227-2804
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AT7T · 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
•
SURFACE FINISH: GROUND
•
LUBRICATION MATERIAL: GREASE
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
•
INNER RING WIDTH: 0.6250 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
•
STYLE DESIGNATOR: AIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 0.9375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
ALIGNMENT TYPERIGID
INNER RING WIDTH0.6250 INCHES NOMINAL IN
MATERIALSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
STYLE DESIGNATORAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
OVERALL OUTSIDE DIAMETER0.9375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
SPECIFICATION/STANDARD DATA96906-MS24461 GOVERNMENT STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
5057Interchangeable
interchangeable cross-reference
interchangeable
J8492ABInterchangeable
interchangeable cross-reference
interchangeable
HDC58RInterchangeable
interchangeable cross-reference
interchangeable
CPH58RInterchangeable
interchangeable cross-reference
interchangeable
AS24461Interchangeable
interchangeable cross-reference
interchangeable
505-20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AT7T?
AT7T is a BEARING,ROLLER,NEEDLE.
What parts can replace AT7T?
There are 33 known substitutes for AT7T: 5057, J8492AB, HDC58R and 30 more. Substitute compatibility should be verified for your specific system.
Is AT7T still available?
AT7T 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