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Cross Reference

These part numbers have the same form, fit, and function as 280505au
Item Number Cage
280505AU 66289

Series  

Other parts in this series

Technical Definition

Piston, Internal Combustion Engin, also referenced with federal logistics item name code 16509

280505AU

Description: Internal Combustion Engin Piston
Mfr. Cage 66289

Specification

aluminum alloy

AASK Head Style
Flat
ABKW Overall Height
3.938 inches
ABMZ Diameter
3.375 inches
ACXM Oil Passage Type
Hole
ACXU Pinhole Diameter
1.1800 inches
AGYE Surface Finish
Finished
AXFR Finished Size Designation
Standard
AXFT Skirt Type
Solid
AXFW Cut Depth
0.375 inches
AXFX Skirt Bottom Cutaway Feature
Included
AXFZ Ring Groove Quantity
4
AXGB Ring Groove Width
0.1000 inches
AXGB Ring Groove Width
0.1560 inches 3rd ring
AXGD Ring Groove Diameter
3.045 inches
AXGE Ring Groove Position Below Piston Pin
Number 4 ring groove located below pin bosses
AXGE Ring Groove Position Below Piston Pin
Number 1,number 2,and number 3,number 4 all rings
AXPH Oil Groove
Not included
AXPK Distance From Pin Hole Center To Extreme Top
2.160 inches
AXPL Pin Hole Bushing
Not included
AXPM Distance Between Pin Bosses
1.375 inches
AXPN Retaining Ring Groove
Included
AXPP Pin
Included
AXPQ Pin Type For Which Designed
Floating
AXPR Ring
Included
BQBL Carbon Groove
Not included
MATL Material
Aluminum alloy
MATT Material
Aluminum alloy
WGHT Weight
24.0 ounces
National Stock Number (NSN): 2815-00-005-7530

Last Modified: 02/14/2017