Safety Relief Valve NSN 4820-01-503-1549

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: 4820-01-503-1549

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Bolt Hole Quantity

8 all ends

Valve Operation Method

Automatic or manual

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Facility

Bracket

Valve Size

4.000 inches

Opening Pressure Setting

22.0 pounds per square inch

Outside Diameter

7.6875 inches all ends

Thickness

1.000 inches all ends

First Connection Face To Centerline Distance

6.500 inches

Bolt Hole Diameter

0.6875 inches all ends

Second Connection Face To Centerline Distance

6.500 inches

Bolt Circle Diameter

6.5625 inches all ends

Flange Face Design

Plain all ends

Material

Nickel alloy flow control device

Material Specification

Qq-n-288 federal specification single material response seat or astm b-164 assn standard single material response seat

Style Designator

Err-090

Specification Data

81349-mil-v-20065 rev c/type a2/ class c government specification and 81349-mil-v-24332 gd. B government specification

FSC

4820 Nonpowered Valves

NIIN

015031549

NSN

4820015031549

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

MP8353D01E0022

Cage Code:

01343

Status:

MSDS:

Part Number:

MP8353 ASSY MP8353D01E0022

Cage Code:

01343

Status:

MSDS:

Part Number:

MP8353

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 4820-01-503-1549

What are the manufacturers of nsn 4820015031549?

Anderson Greenwood Lp (01343)

Does this nsn 4820015031549 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820015031549
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 4820015031549 contain any precious metals?
No precious metal content.

Does nsn 4820015031549 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820015031549?
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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