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AC40656 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

AC40656: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include bore_diameter: 0.7493 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 0.8450 INCHES MINIMUM AND 0.8500 INCHES MAXIMUM IN, outer_ring_width: 0.7200 INCHES MINIMUM AND 0.7250 INCHES MAXIMUM IN, surface_treatment: CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-453-8364, 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
AC40656
NSN: 3110-00-453-8364
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 3NPS1 — RBC AIRCRAFT PRODUCTS, INC. (USA)
SPECIFICATIONS
bore_diameter0.7493 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
inner_ring_width0.8450 INCHES MINIMUM AND 0.8500 INCHES MAXIMUM IN
outer_ring_width0.7200 INCHES MINIMUM AND 0.7250 INCHES MAXIMUM IN
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
overall_outside_diameter1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
NSN3110-00-453-8364
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AC40656 · 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
•
OUTER RING WIDTH: 0.7200 INCHES MINIMUM AND 0.7250 INCHES MAXIMUM IN
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
•
ALIGNMENT TYPE: RIGID
•
SURFACE TREATMENT: CHROMIUM OUTER RING
•
BORE DIAMETER: 0.7493 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
•
INNER RING WIDTH: 0.8450 INCHES MINIMUM AND 0.8500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTER RING WIDTH0.7200 INCHES MINIMUM AND 0.7250 INCHES MAXIMUM IN
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
ALIGNMENT TYPERIGID
SURFACE TREATMENTCHROMIUM OUTER RING
SURFACE TREATMENTCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
BORE DIAMETER0.7493 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
INNER RING WIDTH0.8450 INCHES MINIMUM AND 0.8500 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
C5A27512Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AC40656?
AC40656 is a BEARING,ROLLER,NEEDLE.
What parts can replace AC40656?
There is 1 known substitute for AC40656: C5A27512. Substitute compatibility should be verified for your specific system.
What is the NSN for AC40656?
AC40656 is cataloged in the U.S. Government catalog under NSN 3110-00-453-8364. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.