Valve Seat NSN 4820-01-420-4998

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: 4820-01-420-4998

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Features and Characteristics

End Application

Navy weapon system code th, stategic sealift conversion ships class

Seating Surface Shape

O-ring

Special Features

Carbon moly steel a-182 gr f1, w 13percent chrome steel facing 250-280 bhn, aa trim 2.50in. 5275f globe valve

Material

Steel seat

FSC

4820 Nonpowered Valves

NIIN

014204998

NSN

4820014204998

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

0639585

Cage Code:

63686

Status:

MSDS:

Part Number:

WALWORTH 5275F 2.50IN IT3

Cage Code:

0YRW0

Status:

MSDS:

Part Number:

5275F 2.50IN IT3

Cage Code:

63686

Status:

MSDS:

Part Number:

639585

Cage Code:

63686

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 4820-01-420-4998

What are the manufacturers of nsn 4820014204998?

The Walworth Company (63686)
Valve Automation And Control Of San (0YRW0)

Does this nsn 4820014204998 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014204998
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 4820014204998 contain any precious metals?
No precious metal content.

Does nsn 4820014204998 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014204998?
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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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service