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642AS2855 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

642AS2855: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, minor_thickness: 0.087 INCHES NOMINAL IN, outside_diameter: 2.160 INCHES MINIMUM AND 2.170 INCHES MAXIMUM IN, style_designator: TWO FLATS, aperture_diameter: 1.460 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN, counterbore_depth: 0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-073-6557, 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
642AS2855
NSN: 3110-01-073-6557
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
minor_thickness0.087 INCHES NOMINAL IN
outside_diameter2.160 INCHES MINIMUM AND 2.170 INCHES MAXIMUM IN
style_designatorTWO FLATS
aperture_diameter1.460 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN
counterbore_depth0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
overall_thickness0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
mounting_hole_typeROUND, UNTHREADED, COUNTERBORED
width_across_flats2.000 INCHES NOMINAL IN
counterbore_diameter0.180 INCHES NOMINAL IN
mounting_hole_diameter0.102 INCHES NOMINAL IN
bolt_circle_hole_quantity8
NSN3110-01-073-6557
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 642AS2855 · 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
•
WIDTH ACROSS FLATS: 2.000 INCHES NOMINAL IN
•
MINOR THICKNESS: 0.087 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 8
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED, COUNTERBORED
•
COUNTERBORE DIAMETER: 1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN
•
COUNTERBORE DEPTH: 0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
MOUNTING HOLE ARRANGEMENT STYLE: SINGLE BOLT HOLE CIRCLE
•
OVERALL THICKNESS: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.000 INCHES NOMINAL IN
MINOR THICKNESS0.087 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY8
MOUNTING HOLE TYPEROUND, UNTHREADED, COUNTERBORED
COUNTERBORE DIAMETER1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN
COUNTERBORE DEPTH0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
MOUNTING HOLE ARRANGEMENT STYLESINGLE BOLT HOLE CIRCLE
OVERALL THICKNESS0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
STYLE DESIGNATORTWO FLATS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 642AS2855?
642AS2855 is a PLATE,RETAINING,BEARING.
What is the NSN for 642AS2855?
642AS2855 is cataloged in the U.S. Government catalog under NSN 3110-01-073-6557. 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.