Model: 3991488

Internal Combustion Engine Piston

Properties:

Head Style
Concave
Overall Height
3.190 inches
Diameter
4.000 inches
Oil Passage Type
Hole
Pinhole Diameter
0.9270 inches
Surface Finish
Finished
Finished Size Designation
Standard
Skirt Type
Solid
Cut Depth
0.970 inches
Skirt Bottom Cutaway Feature
Included
Ring Groove Quantity
3
Ring Groove Position
Number 1, number 2, number 3
Ring Groove Width
Between 0.0790 inches and 0.0800 inches
Ring Groove Width
Between 0.1880 inches and 0.1890 inches
Ring Groove Width
0.0790 inches and 0.0800 inches 1st ring
Ring Groove Width
0.0790 inches and 0.0800 inches 2nd ring
Ring Groove Width
0.1880 inches and 0.1890 inches 3rd ring
Ring Groove Diameter
Between 3.456 inches and 3.556 inches
Ring Groove Diameter
Between 3.582 inches and 3.592 inches
Ring Groove Diameter
3.456 inches and 3.556 inches 2nd ring
Ring Groove Diameter
3.456 inches and 3.556 inches 1st ring
Ring Groove Diameter
3.582 inches and 3.592 inches 3rd ring
Oil Groove
Included
Distance From Pin Hole Center To Extreme Top
Between 1.537 inches and 1.542 inches
Pin Hole Bushing
Not included
Distance Between Pin Bosses
1.140 inches
Retaining Ring Groove
Not included
Pin
Included
Pin Type For Which Designed
Floating
Ring
Not included
Carbon Groove
Not included
Material
Aluminum alloy
Material
Aluminum alloy
Surface Treatment
Tin
Surface Treatment
Tin plated
Weight
21.0 ounces
NSN
2805-00-757-4107
Part Number
3991488
Description
Piston,internal Combustion Engine
CAGE
23862

Part 3991488 NSN 2805-00-757-4107

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:
SU
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.7000lbs
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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