Model: D-1639

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1300 inches and 0.1500 inches
Chamfer Angle In Deg
45.0
Hole Diameter
Between 0.1260 inches and 0.1320 inches
Chamfer Length
0.0312 inches
Outside Diameter
Between 1.0430 inches and 1.0530 inches
Seat Angle In Deg
30.0
Stem Style
Drilled
Carbon Relief Groove
Not included
Neck Radius
0.3125 inches
Stem Length
Between 2.9790 inches and 2.9990 inches
Stem Diameter
Between 0.2470 inches and 0.2480 inches
Distance From Hole Center To Stem End
0.1562 inches
Material And Location
Steel, ms-42, trw mechanical products div
Metallic Hardness Rating And Location
37.0 rockwell c tip
Fsc Application Data
Gasoline engine
NSN
2805-00-271-9543
Part Number
D-1639
Description
Valve,poppet,engine
CAGE

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 D-1639 NSN 2805-00-271-9543

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:
0.1000lbs
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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