Model: 8393178

Internal Combustion Engine Piston

Properties:

Head Style
Flat
Overall Height
4.875 inches
Diameter
4.625 inches
Oil Passage Type
Slot
Pinhole Diameter
Between 1.2499 inches and 1.2501 inches
Surface Finish
Finished
Finished Size Designation
Standard
Skirt Type
Full split
Skirt Bottom Cutaway Feature
Not included
Ring Groove Quantity
5
Ring Groove Position
Number 1, number 2, number 3, and number 4
Ring Groove Width
Between 0.1255 inches and 0.1265 inches
Ring Groove Width
Between 0.1265 inches and 0.1275 inches
Ring Groove Width
Between 0.1880 inches and 0.1890 inches
Ring Groove Width
0.1255 inches and 0.1265 inches 2nd ring
Ring Groove Width
0.1255 inches and 0.1265 inches 4th ring
Ring Groove Width
0.1265 inches and 0.1275 inches 1st ring
Ring Groove Width
0.1880 inches and 0.1890 inches 3rd ring
Ring Groove Diameter
Between 4.163 inches and 4.177 inches
Ring Groove Diameter
Between 4.203 inches and 4.217 inches
Ring Groove Diameter
4.163 inches and 4.177 inches 3rd ring
Ring Groove Diameter
4.203 inches and 4.217 inches 1st ring
Ring Groove Diameter
4.203 inches and 4.217 inches 2nd ring
Ring Groove Diameter
4.203 inches and 4.217 inches 4th ring
Ring Groove Position Below Piston Pin
Number 5 located below piston pin holes
Ring Groove Position Below Piston Pin
Number 1, number 2, number 3, and number 4 all rings
Oil Groove
Not included
Distance From Pin Hole Center To Extreme Top
Between 2.307 inches and 2.317 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
1.312 inches
Retaining Ring Groove
Not included
Pin
Included
Pin Type For Which Designed
Floating
Ring
Not included
Carbon Groove
Not included
Skirt Slot Style
Base to groove slot
Material
Aluminum
Material
Aluminum
Surface Treatment
Tin
Surface Treatment
Tin plated
NSN
2805-00-274-3462
Part Number
8393178
Description
Piston,internal Combustion Engine
CAGE
19207

Part 8393178 NSN 2805-00-274-3462

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16509
FIIG:
T267-C
Concept No.:
1
App. Key:
CA
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8409918000
  • SITC: 71391
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Parts for spark-ignition internal combustion piston engines, nesoi

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