Model: 671778

Internal Combustion Engine Piston

Properties:

Head Style
Flat
Overall Height
4.188 inches
Diameter
4.000 inches
Pinhole Diameter
Between 0.9980 inches and 0.9990 inches
Surface Finish
Finished
Finished Size Designation
Oversize
Oversize
0.040 inches
Skirt Type
Solid
Skirt Bottom Cutaway Feature
Included
Ring Groove Quantity
4
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
0.1265 inches 1st ring and 0.1275 inches 1st ring
Ring Groove Width
0.1880 inches 4th ring and 0.1890 inches 4th 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 Width
0.1265 inches and 0.1275 inches 1st ring
Ring Groove Width
0.1880 inches and 0.1890 inches 4th ring
Ring Groove Diameter
3.5715 inches 4th ring and 3.5855 inches 4th ring
Ring Groove Diameter
3.6115 inches 1st ring and 3.6255 inches 1st ring
Ring Groove Diameter
3.6115 inches 2nd ring and 3.6255 inches 2nd ring
Ring Groove Diameter
3.6115 inches 3rd ring and 3.6255 inches 3rd ring
Ring Groove Diameter
3.5715 inches and 3.5855 inches 4th ring
Ring Groove Diameter
3.6115 inches and 3.6255 inches 1st ring
Ring Groove Diameter
3.6115 inches and 3.6255 inches 2nd ring
Ring Groove Diameter
3.6115 inches and 3.6255 inches 3rd ring
Oil Groove
Not included
Distance From Pin Hole Center To Extreme Top
Between 2.182 inches and 2.192 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
1.063 inches
Retaining Ring Groove
Included
Pin
Included
Pin Type For Which Designed
Locking
Ring
Not included
Carbon Groove
Not included
Material
Aluminum
Material
Aluminum
Surface Treatment
Tin
Surface Treatment
Tin plated
Fsc Application Data
Gasoline engine, nonaircraft
NSN
2805-00-737-6645
Part Number
671778
Description
Piston,internal Combustion Engine
CAGE
58275

Part 671778 NSN 2805-00-737-6645

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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