Model: E-255S

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1860 inches and 0.2010 inches
Chamfer Angle In Deg
15.0
Chamfer Length
Between 0.0020 inches and 0.0100 inches
Outside Diameter
Between 1.4950 inches and 1.5050 inches
Seat Angle In Deg
46.0
Stem Style
Double grooved
Carbon Relief Groove
Not included
Neck Radius
0.3440 inches
Stem Length
Between 4.7120 inches and 4.7470 inches
Stem Diameter
Between 0.3400 inches and 0.3407 inches
Distance From First Groove To Stem End
0.2890 inches
Distance From Second Groove To Stem End
Between 0.5290 inches and 0.5390 inches
First Groove Diameter
Between 0.2970 inches and 0.3030 inches
Second Groove Diameter
Between 0.2970 inches and 0.3030 inches
First Groove Width
Between 0.0950 inches and 0.1050 inches
Second Groove Width
0.1050 mils and 0.1150 centimeters
Material And Location
Cobalt alloy tip
Material And Location
Cobalt alloy seat face
Material And Location
Steel, federal standard 66, sae hnv3 stem
Material And Location
Steel, federal standard 66, sae hnv3 head
Metallic Hardness Rating And Location
32.0 rockwell c
Fsc Application Data
Gasoline engine
NSN
2805-00-718-3957
Part Number
E-255S
Description
Valve,poppet,engine
CAGE
83087

A mushroom or tulip-shaped item having a circular head with a conical face and an extended stem used to regulate the flow of incoming fuel-air mixture or air into the combustion chamber or exhaust gases from the combustion chamber of a reciprocating internal combustion engine.

Part E-255S NSN 2805-00-718-3957

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15884
FIIG:
A11200
Concept No.:
1
App. Key:
A
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:
0.5000lbs
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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