D21908

Valve Seat

NSN 4820-00-036-0696

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

000360696

Product Features

4 lugs 0.240 w, 0.188 deep equally spaced on flange end

Detail Specifications

Thread Class:

2a single threaded portion

Thread Length:

0.250 inches single threaded portion

Flange Diameter:

1.375 inches

Body Inside Diameter:

0.754 inches

Flange Seat To Disk End Height:

0.406 inches

Under Flange Height:

0.375 inches

Seat Angle In Deg:

42.000

Thready Qty Per Inch (tpi):

14 single threaded portion

Thread Size:

1.125 inches single threaded portion

Seating Surface Shape:

Angular

Material:

Steel body

Style Designator:

Threaded flanged

Thread Series Designator:

Uns single threaded portion

NSN:

4820-00-036-0696

Item Name:

Insert,valve Seat

Cage Code:

34889

Manufacturer Part Numbers

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

D21908PC

Cage Code:

23168

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Valve Seat Insert"

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.