Valve Seat NSN 4820-00-420-8445

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: 4820-00-420-8445

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Features and Characteristics

Flange Diameter

Between 0.185 inches and 0.195 inches

Body Outside Diameter

Between 0.154 inches and 0.157 inches

Body Inside Diameter

Between 0.066 inches and 0.070 inches

End Application

16508789158, a-7d

Flange Seat To Disk End Height

Between 0.085 inches and 0.090 inches

Under Flange Height

Between 0.058 inches and 0.063 inches

Seal Accommodation Type

Recessed

Hardness Rating

56.0 rockwell c and 60.0 rockwell c

Seating Surface Shape

Flat

Material

Steel comp 440c

Material Specification

Ams5630 assn standard all material responses

Surface Treatment

Passivate

Surface Treatment Specification

Mil-f-14072 military specification all treatment responses

Style Designator

Plain flanged

Fsc Application Data

Aircraft hydraulic system

FSC

4820 Nonpowered Valves

NIIN

004208445

NSN

4820004208445

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

1719

Cage Code:

94874

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 4820-00-420-8445

What are the manufacturers of nsn 4820004208445?

Droitcour Company (94874)

Does this nsn 4820004208445 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004208445
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 4820004208445 contain any precious metals?
No precious metal content.

Does nsn 4820004208445 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004208445?
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
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