Safety Relief Valve NSN 4820-01-539-3343

Item Description

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

NSN: 4820-01-539-3343

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Renewable Seat Ring Type

Retaining screw

Maximum Operating Temp

320.0 degrees fahrenheit single response

End Application

New construction lcs1

Valve Operation Method

Automatic

Connection Type

Unthreaded internal tube all ends

Valve Size

0.500 inches

Maximum Operating Pressure

500.0 pounds per square inch single response

Criticality Code Justification

Zzzy

Opening Pressure Setting

58.0 pounds per square inch

First Connection Face To Centerline Distance

3.625 inches

Second Connection Face To Centerline Distance

3.562 inches

Part Name Assigned By Controlling Agency

1/2 x 3/4 relief valve

Special Features

Type 1551-t relief valve; 1/2" inlet and 3/4" outlet; union nuts and tailpieces are bronze. Rated capaci type 204 scfm, required capaci type 30 scfm

Material

Nickel alloy flow control device and plastic polytetrafluoroethylene flow control device

Style Designator

Err-090

Furnished Items And Quantity

1 plugged drain and 2 tailpiece and 2 nut

Specification Data

81349 - mil-v-22549 government specification

Reference Number Differentiating Characteristics

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

FSC

4820 Nonpowered Valves

NIIN

015393343

NSN

4820015393343

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

20167JM51M

Cage Code:

15187

Status:

MSDS:

Part Number:

20167D02R0058

Cage Code:

15187

Status:

MSDS:

Part Number:

20167JM51MCP

Cage Code:

03950

Status:

MSDS:

Part Number:

A15710

Cage Code:

01343

Status:

MSDS:

Part Number:

20167

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: 8481400000
NAICS: 332911
SITC: 74740
Description: Safety or relief valves
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-539-3343

What are the manufacturers of nsn 4820015393343?

Does this nsn 4820015393343 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820015393343
A valve designed to automatically release excessive pressures. it is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. it is not designed for regulation of continuously fluctuating loads. it may be inline or cartridge (manifold) design. excludes valve (1), relief, pressure and temperature.

Does nsn 4820015393343 contain any precious metals?
No precious metal content.

Does nsn 4820015393343 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820015393343?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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