Model: 301874

Engine Poppet Valve

Properties:

Head Style
Concave
Head Height
Between 0.2660 inches and 0.2760 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.4220 inches and 0.4280 inches
Chamfer Length
0.0200 inches
Groove Width
Between 0.1560 inches and 0.1660 inches
Outside Diameter
Between 2.2760 inches and 2.2860 inches
Seat Angle In Deg
45.0
Carbon Relief Groove
Not included
Neck Radius
0.7500 inches
Stem Length
Between 5.5390 inches and 5.5564 inches
Stem Diameter
Between 0.5575 inches and 0.5580 inches
Distance From Minor Diameter To Stem End
0.2500 inches
Material And Location
Steel ams 5682 head
Material And Location
Steel ams-5700 stem
Material And Location
Steel eatonite seat face 92856
Material And Location
Steel tprk 98349 tip
Metallic Hardness Rating And Location
56.0 rockwell c tip
NSN
2805-00-774-4797
Part Number
301874
Description
Valve,poppet,engine
CAGE
02978

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 301874 NSN 2805-00-774-4797

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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