Model: 306721

Internal Combustion Engine Piston

Properties:

Head Style
Flat
Overall Height
5.940 inches
Diameter
4.875 inches
Oil Passage Type
Hole and slot
Pinhole Diameter
1.5000 inches
Surface Finish
Finished
Finished Size Designation
Standard
Skirt Type
Solid
Skirt Bottom Cutaway Feature
Not included
Ring Groove Quantity
5
Ring Groove Position
Number 1, number 2, number 3, number 4, and number 5
Ring Groove Width
0.0975 inches and 0.0965 inches and 0.2515 inches and 0.1890 inches
Ring Groove Diameter
4.333 inches
Ring Groove Diameter
4.400 inches
Ring Groove Diameter
4.4000 inches
Ring Groove Diameter
4.333 inches 1st ring
Ring Groove Diameter
4.333 inches 2nd ring
Ring Groove Diameter
4.400 inches 3rd ring
Ring Groove Diameter
4.4000 inches 4th ring
Ring Groove Position Below Piston Pin
Number 5 ring groove located below piston pin holes
Ring Groove Position Below Piston Pin
Number 1, number 2, number 3, number 4, and number 5 all rings
Oil Groove
Not included
Distance From Pin Hole Center To Extreme Top
3.630 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
2.000 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
Weight
Any acceptable
Fsc Application Data
Engine gasoline nonaircraft
NSN
2805-00-741-3668
Part Number
306721
Description
Piston,internal Combustion Engine
CAGE
H0001

Part 306721 NSN 2805-00-741-3668

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
6.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
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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