Model: 4371631

Internal Combustion Engine Piston

Properties:

Head Style
Flat
Overall Height
6.725 inches
Diameter
5.250 inches
Oil Passage Type
Hole
Pinhole Diameter
1.7480 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
0.1250 inches and 0.1240 inches and 0.1240 inches and 0.2500 inches and 0.2500 inches
Ring Groove Diameter
4.700 inches and 4.798 inches and 4.798 inches and 4.745 inches and 4.745 inches
Ring Groove Position Below Piston Pin
Number 5 ring groove located below piston pin bosses
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
3.750 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
2.015 inches
Retaining Ring Groove
Included
Pin
Included
Pin Type For Which Designed
Floating
Ring
Not included
Carbon Groove
Not included
Skirt Slot Style
No slot
Material
Aluminum alloy
Material
Aluminum alloy
Weight
113.0 ounces
NSN
2815-00-632-4134
Part Number
4371631
Description
Piston,internal Combustion Engine
CAGE
6N299

Part 4371631 NSN 2815-00-632-4134

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: 8409998000
  • SITC: 71392
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Parts for compression-ignition internal combustion piston engines (diesel), nesoi

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