Model: S1639

Engine Poppet Valve

Properties:

Head Style

Flat

Head Height

Between 0.1490 inches and 0.1640 inches

Chamfer Angle In Deg

60.0

Chamfer Length

Between 0.0200 inches and 0.0400 inches

Outside Diameter

Between 1.5250 inches and 1.5350 inches

Seat Angle In Deg

30.0

Stem Style

Double grooved

Carbon Relief Groove

Not included

Neck Radius

Between 0.5500 inches and 0.5700 inches

Stem Length

Between 5.9280 inches and 6.0068 inches

Stem Diameter

Between 0.4020 inches and 0.4030 inches

Distance From First Groove To Stem End

0.2498 inches

Distance From Second Groove To Stem End

Between 0.4926 inches and 0.5126 inches

First Groove Diameter

Between 0.3020 inches and 0.3080 inches

Second Groove Diameter

Between 0.3020 inches and 0.3080 inches

First Groove Width

0.0625 inches

Second Groove Width

0.0625 inches

Material And Location

Steel

Fsc Application Data

Diesel engine

NSN

2815-00-364-5098

Part Number

S1639

Description

Valve,poppet,engine

CAGE

59875

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 S1639 NSN 2815-00-364-5098

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15884

FIIG:

A11200

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

593

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8409998000
SITC: 71392
End Use: Industrial engines
NAICS: 333618
USDA: 1

Freight Class: Parts for compression-ignition internal combustion piston engines (diesel), nesoi