Model: 53-300

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
0.1560 inches
Chamfer Angle In Deg
45.0
Hole Diameter
0.0820 inches
Chamfer Length
0.0312 inches
Outside Diameter
Between 0.8670 inches and 0.8830 inches
Seat Angle In Deg
45.0
Stem Style
Drilled
Carbon Relief Groove
Not included
Neck Radius
0.1875 inches
Stem Length
Between 3.7820 inches and 3.7880 inches
Stem Diameter
Between 0.3090 inches and 0.3100 inches
Distance From Hole Center To Stem End
Between 0.1840 inches and 0.1900 inches
Material And Location
Steel, federal standard 66, aisi/sae 3140
Fsc Application Data
Gasoline engine
NSN
2805-00-528-6258
Part Number
53-300
Description
Valve,poppet,engine
CAGE
1UVT5

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 53-300 NSN 2805-00-528-6258

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
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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