Model: 2551A

Internal Combustion Engine Piston

Properties:

Head Style
Hat
Overall Height
2.438 inches
Diameter
2.000 inches
Pinhole Diameter
Between 0.3750 inches and 0.3753 inches
Surface Finish
Finished
Finished Size Designation
Standard
Skirt Type
Solid
Skirt Bottom Cutaway Feature
Not included
Ring Groove Quantity
3
Ring Groove Position
Number 1, number 2 and number 3
Ring Groove Width
Between 0.0940 inches and 0.0950 inches
Ring Groove Diameter
1.755 inches
Ring Groove Diameter
1.760 inches
Ring Groove Diameter
1.755 inches 1st ring
Ring Groove Diameter
1.760 inches 2nd ring
Oil Groove
Not included
Distance From Pin Hole Center To Extreme Top
Between 1.157 inches and 1.167 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
0.969 inches
Retaining Ring Groove
Not included
Pin
Not included
Pin Type For Which Designed
Locking
Ring
Not included
Carbon Groove
Not included
Material
Aluminum
Material
Aluminum
Weight
Any acceptable
Fsc Application Data
Gasoline engine, nonaircraft
NSN
2805-00-406-0712
Part Number
2551A
Description
Piston,internal Combustion Engine
CAGE
31568

Part 2551A NSN 2805-00-406-0712

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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