Valve Seat NSN 4820-01-216-8844

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: 4820-01-216-8844

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Features and Characteristics

Thread Class

2a single threaded portion

Thread Length

1.066 inches single threaded portion

Flange Diameter

Between 1.795 inches and 1.805 inches

Body Inside Diameter

Between 1.000 inches and 1.003 inches

Flange Seat To Disk End Height

0.375 inches

Under Flange Height

0.066 inches

Seat Angle In Deg

Between 44.000 and 44.500

Seal Accommodation Type

Grooved

Hardness Rating

Not rated

Thread Size

1.500 inches single threaded portion

Seating Surface Shape

Angular

Criticality Code Justification

Zzzy

Special Features

Internal socket 0.750 inch hexagon for use with inserted driver

Material

Steel comp 303 seat

Material Specification

Astm, usn alloy s30300, cond a assn standard single material response seat

Style Designator

Threaded flanged

Thread Series Designator

Unef single threaded portion

Reference Number Differentiating Characteristics

Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications

FSC

4820 Nonpowered Valves

NIIN

012168844

NSN

4820012168844

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

A14319.001.156

Cage Code:

01343

Status:

MSDS:

Part Number:

A15688PC13

Cage Code:

01343

Status:

MSDS:

Part Number:

A7736.156(MOD)

Cage Code:

01343

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 4820-01-216-8844

What are the manufacturers of nsn 4820012168844?

Anderson Greenwood Lp (01343)

Does this nsn 4820012168844 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820012168844
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 4820012168844 contain any precious metals?
No precious metal content.

Does nsn 4820012168844 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820012168844?
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
Quality Inspected Parts
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