Model: 15-421

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
0.1874 inches
Chamfer Angle In Deg
45.0
Chamfer Length
0.0312 inches
Outside Diameter
1.4375 inches
Seat Angle In Deg
45.0
Stem Style
Double grooved
Carbon Relief Groove
Not included
Neck Radius
0.3750 inches
Stem Length
4.8430 inches
Stem Diameter
Between 0.3710 inches and 0.3720 inches
Distance From First Groove To Stem End
Between 0.1230 inches and 0.1250 inches
Distance From Second Groove To Stem End
Between 0.5800 inches and 0.6020 inches
First Groove Diameter
Between 0.2450 inches and 0.2500 inches
Second Groove Diameter
Between 0.3190 inches and 0.3240 inches
First Groove Width
Between 0.4375 inches and 0.4420 inches
Second Groove Width
0.0500 mils and 0.0600 centimeters
Material And Location
Steel, federal standard 66, aisi/sae 3140 stem
Metallic Hardness Rating And Location
28.0 rockwell c stem and 37.0 rockwell c stem
NSN
2805-00-371-6376
Part Number
15-421
Description
Valve,poppet,engine
CAGE
35301

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 15-421 NSN 2805-00-371-6376

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:
0.3000lbs
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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