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A20271 — COVER,ELEVATOR TOP

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

A20271: COVER,ELEVATOR TOP.

The COVER,ELEVATOR TOP is a the manufacturer industrial component. Key specifications include end_item_identification: MOUNT,MG,AA,CAL 50,M63, general_characteristics_item_description: CLOTH,COTTON,DUCK,FED. SPEC CCC-C-428,TYPE I.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-227-4128, 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
A20271
NSN: 3110-00-227-4128
NIINs: 002274128, 007162097
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 00658 — ABC ACQUISITION COMPANY DBA AETNA BEARING COMPANY (USA)
SPECIFICATIONS
end_item_identificationMOUNT,MG,AA,CAL 50,M63
general_characteristics_item_descriptionCLOTH,COTTON,DUCK,FED. SPEC CCC-C-428,TYPE I
NSN3110-00-227-4128
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A20271 · 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
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RETAINER FABRICATION METHOD: MACHINED
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SURFACE FINISH: GROUND
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STYLE DESIGNATOR: GROOVED RACE SURFACE
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THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
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OVERALL OUTSIDE DIAMETER: 1.6405 INCHES MINIMUM AND 1.6435 INCHES MAXIMUM IN
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BORE SMALLEST DIAMETER: 0.5904 INCHES MINIMUM AND 0.5906 INCHES MAXIMUM IN
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
OVERALL HEIGHT0.6230 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
SURFACE FINISHGROUND
STYLE DESIGNATORGROOVED RACE SURFACE
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
OVERALL OUTSIDE DIAMETER1.6405 INCHES MINIMUM AND 1.6435 INCHES MAXIMUM IN
BORE SMALLEST DIAMETER0.5904 INCHES MINIMUM AND 0.5906 INCHES MAXIMUM IN
ALIGNMENT TYPERIGID
SPECIAL FEATURESLARGE BORE WASHER DIA 0.7830 IN. MIN 0.7860 IN. MAX,STABILIZED FOR OPERATION AT 275 DEG F IN
MATERIALSTEEL BALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is A20271?
A20271 is a COVER,ELEVATOR TOP.
What is the NSN for A20271?
A20271 is cataloged in the U.S. Government catalog under NSN 3110-00-227-4128. 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.