Valve Seat NSN 4820-00-346-6529

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: 4820-00-346-6529

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Features and Characteristics

Thread Class

2a single threaded portion

Err Default

0.438 inches single threaded portion

Flange Diameter

2.188 inches

Flange Seat To Disk End Height

0.438 inches

Under Flange Height

0.438 inches

Thready Qty Per Inch (tpi)

16 single threaded portion

Thread Size

2.000 inches single threaded portion

Seating Surface Shape

Flat

Body Stepped Inside Diameter

1.695 inches first step and 1.697 inches first step

Material

Cobalt alloy

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

FSC

4820 Nonpowered Valves

NIIN

003466529

NSN

4820003466529

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

8037A06B

Cage Code:

38056

Status:

MSDS:

Part Number:

H4820-346-6529

Cage Code:

03950

Status:

MSDS:

Part Number:

R557-49090APC16

Cage Code:

38056

Status:

MSDS:

Part Number:

R557-49120APC16

Cage Code:

38056

Status:

MSDS:

Part Number:

R557-49330APC16

Cage Code:

38056

Status:

MSDS:

Part Number:

R557-49340CPC16

Cage Code:

38056

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 4820-00-346-6529

What are the manufacturers of nsn 4820003466529?

Ashcroft Inc. (38056)
Naval Inventory Control Point (03950)

Does this nsn 4820003466529 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820003466529
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 4820003466529 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820003466529 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820003466529?
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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