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KP3ALFS428 — BEARING,BALL,AIRFRAME

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

KP3ALFS428: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE SEAL, bore_diameter: 0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN, load_direction: RADIAL, inner_ring_width: 0.2320 INCHES MINIMUM AND 0.2370 INCHES MAXIMUM IN, outer_ring_width: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN, style_designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-522-8625, 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
KP3ALFS428
NSN: 3110-00-522-8625
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 06144 — INDUSTRIAL TECTONICS BEARINGS CORPORATION DBA RBC BEARINGS INC DIV INDUSTRIAL TECTONICS BEARINGS (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
bore_diameter0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
seal_quantity2
load_directionRADIAL
shield_quantity2
inner_ring_width0.2320 INCHES MINIMUM AND 0.2370 INCHES MAXIMUM IN
outer_ring_width0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_typeCONTACT
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
overall_outside_diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-522-8625
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: KP3ALFS428 · 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
•
BEARING SEAL TYPE: CONTACT
•
OUTER RING WIDTH: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: SINGLE ROW INNER RING EXTENDED BOTH SIDES
•
OVERALL OUTSIDE DIAMETER: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
•
LOAD DIRECTION: RADIAL
•
SURFACE TREATMENT: CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
•
SEAL QUANTITY: 2
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACT
OUTER RING WIDTH0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
SHIELD QUANTITY2
STYLE DESIGNATORSINGLE ROW INNER RING EXTENDED BOTH SIDES
OVERALL OUTSIDE DIAMETER0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
LOAD DIRECTIONRADIAL
SURFACE TREATMENTCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
SEAL QUANTITY2
BORE DIAMETER0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 BALL
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is KP3ALFS428?
KP3ALFS428 is a BEARING,BALL,AIRFRAME.
What is the NSN for KP3ALFS428?
KP3ALFS428 is cataloged in the U.S. Government catalog under NSN 3110-00-522-8625. 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.