Model: 180476R21

Internal Combustion Engine Piston

Properties:

Head Style
Contour
Overall Height
Between 4.237 inches and 4.252 inches
Diameter
3.875 inches
Oil Passage Type
Hole
Pinhole Diameter
1.1090 inches
Surface Finish
Finished
Finished Size Designation
Oversize
Oversize
0.040 inches
Skirt Type
Solid
Skirt Bottom Cutaway Feature
Not included
Ring Groove Quantity
3
Ring Groove Position
Number 1, number 2, number 3
Ring Groove Width
Between 0.0970 inches and 0.0980 inches
Ring Groove Width
Between 0.1880 inches and 0.1890 inches
Ring Groove Width
0.0970 inches and 0.0980 inches 2nd ring
Ring Groove Width
0.0970 inches and 0.0980 inches 1st ring
Ring Groove Width
0.1880 inches and 0.1890 inches 3rd ring
Ring Groove Diameter
Between 3.993 inches and 4.003 inches
Ring Groove Diameter
Between 4.025 inches and 4.035 inches
Ring Groove Diameter
3.993 inches and 4.003 inches 1st ring
Ring Groove Diameter
3.993 inches and 4.003 inches 2nd ring
Ring Groove Diameter
4.025 inches and 4.035 inches 3rd ring
Oil Groove
Included
Distance From Pin Hole Center To Extreme Top
Between 2.377 inches and 2.392 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
2.590 inches
Retaining Ring Groove
Included
Pin
Not 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
NSN
2805-00-480-7544
Part Number
180476R21
Description
Piston,internal Combustion Engine
CAGE
89346

Part 180476R21 NSN 2805-00-480-7544

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:
--
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

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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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