P-639A

Valve Seat

NSN 4820-00-394-7427

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

003947427

Technical Specifications of NSN

Thread Class:

2a single threaded portion

Flange Diameter:

5.125 inches

Flange Seat To Disk End Height:

0.250 inches

Under Flange Height:

0.562 inches

Thready Qty Per Inch (tpi):

14 single threaded portion

Thread Size:

4.625 inches single threaded portion

Seating Surface Shape:

Flat

Body Stepped Inside Diameter:

4.125 inches second step

Body Stepped Inside Diameter:

4.000 inches first step

Material:

Nickel alloy

Style Designator:

Threaded flanged

Thread Series Designator:

Uns single threaded portion

NSN:

4820-00-394-7427

Item Name:

Seat,ball Valve

Cage Code:

70667

Other Related Parts

No other part numbers with same form, fit, and function found.

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:

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:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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Pricing & Availability

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

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.