Valve Seat NSN 4820-01-018-3978

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: 4820-01-018-3978

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Features and Characteristics

Thread Class

2a second threaded portion

Err Default

1.000 inches second threaded portion

Overall Height

5.500 inches

Body Inside Diameter

3.000 inches

Seat Angle In Deg

45.000

Seal Accommodation Type

Grooved

Thready Qty Per Inch (tpi)

16 first threaded portion

Thread Size

3.375 inches second threaded portion

Seating Surface Shape

Angular

Material

Copper alloy

Material Specification

Qq-n-288 federal specification single material response

Style Designator

Double flanged

Thread Series Designator

Uns second threaded portion

FSC

4820 Nonpowered Valves

NIIN

010183978

NSN

4820010183978

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

009-500-0378

Cage Code:

15187

Status:

MSDS:

Part Number:

NMP1122PC27

Cage Code:

15187

Status:

MSDS:

Part Number:

NMP-1122

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 4820-01-018-3978

What are the manufacturers of nsn 4820010183978?

Does this nsn 4820010183978 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820010183978
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 4820010183978 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820010183978 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820010183978?
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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