Model: 1AC4386790-2

Engine Poppet Valve

Properties:

Head Style

Flat

Head Height

Between 0.1610 inches and 0.1710 inches

Chamfer Angle In Deg

30.0

Groove Diameter

0.3290 mils and 0.3350 centimeters

Chamfer Length

0.0156 inches

Groove Width

0.0950 mils and 0.1050 centimeters

Outside Diameter

Between 1.6190 inches and 1.6290 inches

Seat Angle In Deg

30.0

Stem Style

Grooved

Carbon Relief Groove

Not included

Neck Radius

0.3750 inches

Stem Length

7.1930 mils and 7.2040 centimeters

Stem Diameter

0.3715 mils and 0.3720 centimeters

Distance From Groove To Stem End

0.5030 inches

Material And Location

Steel

Fsc Application Data

Diesel engine

NSN

2815-00-946-8072

Part Number

1AC4386790-2

Description

Valve,poppet,engine

CAGE

33844

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 1AC4386790-2 NSN 2815-00-946-8072

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:

0.4000lbs

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