Valve Seat NSN 4820-01-446-1998

Item Description

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.

NSN: 4820-01-446-1998

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Features and Characteristics

Thread Class

3a single threaded portion

Err Default

0.094 inches single threaded portion

Flange Diameter

0.930 inches

Body Inside Diameter

0.471 inches

End Application

Seawolf class submarine

Flange Seat To Disk End Height

0.122 inches

Under Flange Height

0.316 inches

Seat Angle In Deg

45.000

Thready Qty Per Inch (tpi)

24 single threaded portion

Thread Size

0.766 inches single threaded portion

Seating Surface Shape

Angular

Special Features

Component of 1/2 in.Globe valve

Material

Cobalt

Material Specification

Mil-c-24252 comp 1, cond a military specification all material responses

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

FSC

4820 Nonpowered Valves

NIIN

014461998

NSN

4820014461998

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

803-6397434-X21XXX-022

Cage Code:

53711

Status:

MSDS:

Part Number:

6397434

Cage Code:

53711

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481909090
NAICS: 332911
SITC: 74790
Description: Parts of taps, cocks, valves and similar appliances, nesoi
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-446-1998

What are the manufacturers of nsn 4820014461998?

Naval Sea Systems Command (53711)

Does this nsn 4820014461998 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014461998
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.

Does nsn 4820014461998 contain any precious metals?
No precious metal content.

Does nsn 4820014461998 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014461998?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
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