Valve Seat NSN 4820-00-403-5989

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: 4820-00-403-5989

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Features and Characteristics

Overall Height

0.625 inches

Body Outside Diameter

Between 3.621 inches and 3.623 inches

Body Inside Diameter

2.125 inches

Seat Radius

Between 0.155 inches and 0.157 inches

Seating Surface Shape

Radial

Criticality Code Justification

Zzzy

Material

Plastic polyamide

Material Specification

Gs, the polymer corporation mfr ref single material response

Special Test Features

Quality assurance tested for submarine safety program

Style Designator

Plain

Reference Number Differentiating Characteristics

Items that support a level 1 or subsafe critical system that has undergone quality assurance during the acquisition process

FSC

4820 Nonpowered Valves

NIIN

004035989

NSN

4820004035989

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

SS845-2180979PC6-2 1-2IN

Cage Code:

80064

Status:

MSDS:

Part Number:

2640-671X2PC6-2 1-2IN

Cage Code:

96169

Status:

MSDS:

Part Number:

2640-671X2PC6-2 1-2INQ3

Cage Code:

03950

Status:

MSDS:

Part Number:

2640-671X3PC7Q3

Cage Code:

03950

Status:

MSDS:

Part Number:

SS845-2180979PC6-2 1-2INQ3

Cage Code:

03950

Status:

MSDS:

Part Number:

2640-671X2PC6QA

Cage Code:

03950

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 4820-00-403-5989

What are the manufacturers of nsn 4820004035989?

Does this nsn 4820004035989 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004035989
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 4820004035989 contain any precious metals?
No precious metal content.

Does nsn 4820004035989 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004035989?
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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