Safety Relief Valve NSN 4820-01-376-2990

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: 4820-01-376-2990

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Features and Characteristics

Thread Class

3a 2nd end

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Maximum Operating Temp

300.0 degrees fahrenheit single response

Connection Style

G46b plain (pipe) 1st endg42 flared (tube) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st endthreaded external tube 2nd end

Thready Qty Per Inch (tpi)

14 2nd end

Maximum Operating Pressure

300.0 pounds per square inch single response

Thread Size

0.500 inches 1st end0.875 inches 2nd end

Seat Angle

37.0 degrees 2nd end

Opening Pressure Setting

300.0 pounds per square inch

Material

Copper alloy bodyplastic polytetrafluoroethylene flow control device

Media For Which Designed

Refrigerant 22 single response

Style Designator

Err-090

Thread Series Designator

Npt 1st endunj 2nd end

FSC

4820 Nonpowered Valves

NIIN

013762990

NSN

4820013762990

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

3220-300 SET 30

Cage Code:

58553

Status:

MSDS:

Part Number:

3220-300 SET 300 PSI

Cage Code:

58553

Status:

MSDS:

Part Number:

90SM-125-0001ITEM 184

Cage Code:

10855

Status:

MSDS:

Part Number:

90SM-125-0001

Cage Code:

10855

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 4820-01-376-2990

What are the manufacturers of nsn 4820013762990?

Superior Valve Co (58553)
Carrier Corporation (10855)

Does this nsn 4820013762990 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820013762990
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 4820013762990 contain any precious metals?
No precious metal content.

Does nsn 4820013762990 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820013762990?
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
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