Model: 868A4

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1850 inches and 0.2050 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.3590 inches and 0.3650 inches
Chamfer Length
0.0300 inches
Groove Width
Between 0.1320 inches and 0.1420 inches
Outside Diameter
Between 1.7910 inches and 1.8010 inches
Seat Angle In Deg
60.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.4400 inches
Stem Length
Between 5.1830 inches and 5.1980 inches
Stem Diameter
Between 0.4332 inches and 0.4340 inches
Distance From Groove To Stem End
0.2230 inches
Material And Location
Steel
Metallic Hardness Rating And Location
53.0 rockwell c tip
Test Data Document
Mil-s-12515-81349 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
NSN
2805-00-752-1813
Part Number
868A4
Description
Valve,poppet,engine
CAGE
56442

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 868A4 NSN 2805-00-752-1813

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:
SU
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.3000lbs
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

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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