Valve Seat NSN 4820-01-442-9935

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: 4820-01-442-9935

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Features and Characteristics

Thread Class

3a single threaded portion

Flange Diameter

2.680 inches

Flange Seat To Disk End Height

0.500 inches

Under Flange Height

0.531 inches

Thready Qty Per Inch (tpi)

18 single threaded portion

Thread Size

2.5156 inches single threaded portion

Criticality Code Justification

Zzzy

Material

Cobalt comp 1

Material Specification

Mil-c-24252 military specification single material response

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

Reference Number Differentiating Characteristics

Material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

FSC

4820 Nonpowered Valves

NIIN

014429935

NSN

4820014429935

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

803-6397434-X61XXX 042

Cage Code:

53711

Status:

MSDS:

Part Number:

803-6397434-X61XXX-049

Cage Code:

53711

Status:

MSDS:

Part Number:

803-6397434-X61XXX 042L1

Cage Code:

03950

Status:

MSDS:

Part Number:

803-6397434-X61XXX-049L1

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 4820-01-442-9935

What are the manufacturers of nsn 4820014429935?

Naval Sea Systems Command (53711)
Naval Inventory Control Point (03950)

Does this nsn 4820014429935 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014429935
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 4820014429935 contain any precious metals?
No precious metal content.

Does nsn 4820014429935 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014429935?
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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