Model: 423

Internal Combustion Engine Piston

Properties:

Head Style
Flat
Overall Height
Between 3.881 inches and 3.885 inches
Diameter
Between 3.533 inches and 3.537 inches
Pinhole Diameter
Between 0.8747 inches and 0.8749 inches
Surface Finish
Finished
Finished Size Designation
Standard
Skirt Type
Semisplit
Cut Depth
0.594 inches
Skirt Bottom Cutaway Feature
Included
Ring Groove Quantity
3
Ring Groove Width
0.0960 inches 1st ring and 0.0970 inches 1st ring
Ring Groove Width
0.1255 inches 2nd ring and 0.1265 inches 2nd ring
Ring Groove Width
0.1255 inches 3rd ring and 0.1265 inches 3rd ring
Ring Groove Width
0.0960 inches and 0.0970 inches 1st ring
Ring Groove Width
0.1255 inches and 0.1265 inches 2nd ring
Ring Groove Width
0.1255 inches and 0.1265 inches 3rd ring
Ring Groove Diameter
3.155 inches 1st ring and 3.165 inches 1st ring
Ring Groove Diameter
3.195 inches 2nd ring and 3.205 inches 2nd ring
Ring Groove Diameter
3.195 inches 3rd ring and 3.205 inches 3rd ring
Ring Groove Diameter
3.155 inches and 3.165 inches 1st ring
Ring Groove Diameter
3.195 inches and 3.205 inches 3rd ring
Ring Groove Diameter
3.195 inches and 3.205 inches 2nd ring
Oil Groove
Included
Distance From Pin Hole Center To Extreme Top
Between 2.131 inches and 2.135 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
1.500 inches
Retaining Ring Groove
Included
Pin
Included
Pin Type For Which Designed
Floating
Ring
Not included
Carbon Groove
Not included
Material
Aluminum
Material
Aluminum
Surface Treatment
Tin
Surface Treatment
Tin plated
Weight
23.688 ounces
Fsc Application Data
Gasoline engine, nonaircraft
NSN
2805-00-374-9457
Part Number
423
Description
Piston,internal Combustion Engine
CAGE
79975

Part 423 NSN 2805-00-374-9457

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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