Safety Relief Valve NSN 4820-00-202-8221

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: 4820-00-202-8221

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Features and Characteristics

Pipe Size Accommodated

0.375 inches all ends

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Connection Style

Plain (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external pipe all ends

Thready Qty Per Inch (tpi)

18 1st end

Thread Size

0.375 inches all ends

Opening Pressure Setting

20.0 pounds per square inch

Material

Steel stem

Style Designator

Angle

Thread Series Designator

Npt all ends

FSC

4820 Nonpowered Valves

NIIN

002028221

NSN

4820002028221

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

D15-649-501T506

Cage Code:

80231

Status:

MSDS:

Part Number:

BB55S47-102PC373

Cage Code:

80064

Status:

MSDS:

Part Number:

BB55S47-103PC373

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-105ALT2PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-111ALT2PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-125PC173

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-126PC173

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-93ALT3PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-94ALT2PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-20ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-20PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-21ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-29ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CA122S5505-179253PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-101ALT2PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CA68S5505-102ALT1PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CL103S4700-309876PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-32PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CB1S4700-38PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-80ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-81ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-88ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-89ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-92PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S47-98PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CL55S4700-28ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-80ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-81ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-88ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-89ALT6PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-92PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CV22S47-98PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478939PC173

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478940PC173

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478970PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-47897501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478978PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478981PC51T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478982ALT3PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

CVL48S5501-478988ALT3PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

DD445S4601-249PC1PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

DD445S4601-250PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

DD445S4601-257PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

DD445S4601-258PC501T0506

Cage Code:

80064

Status:

MSDS:

Part Number:

DD445S4601-261ALT1PC162

Cage Code:

80064

Status:

MSDS:

Part Number:

D15-653APC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-653BPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-649-501-506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-649-501T0506-512

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-649BPC50T05 06

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-649JPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-649MPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-653IPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-653JPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675MPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675MPC501T0506-508

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675APC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675BPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675IPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-675JPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-683-501T0506-508

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-683APC501T0506-508

Cage Code:

90099

Status:

MSDS:

Part Number:

D15-683EPC501T0506

Cage Code:

90099

Status:

MSDS:

Part Number:

C2555-1DPC373

Cage Code:

37999

Status:

MSDS:

Part Number:

3456-162

Cage Code:

37999

Status:

MSDS:

Part Number:

C2555-2DPC373

Cage Code:

37999

Status:

MSDS:

Part Number:

C3456-1PC162

Cage Code:

37999

Status:

MSDS:

Part Number:

C3456-8PC162

Cage Code:

37999

Status:

MSDS:

Part Number:

C3457-1PC162

Cage Code:

37999

Status:

MSDS:

Part Number:

C3591-1PC162

Cage Code:

37999

Status:

MSDS:

Part Number:

C3591-8PC162

Cage Code:

37999

Status:

MSDS:

Part Number:

C3593-1PC173

Cage Code:

37999

Status:

MSDS:

Part Number:

C3593-2PC173

Cage Code:

37999

Status:

MSDS:

Part Number:

D15-649BPC501T0506

Cage Code:

80231

Status:

MSDS:

Part Number:

D15-683EPC501T0506-508

Cage Code:

79500

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 4820-00-202-8221

What are the manufacturers of nsn 4820002028221?

Westinghouse Electric Corp (80231)
Naval Ship Systems Command (80064)
Northrop Grumman Systems Corporation (90099)
Ex-cell-o Corp Machine Tool Products (37999)
Westinghouse Electric Corp (79500)

Does this nsn 4820002028221 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820002028221
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 4820002028221 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820002028221 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820002028221?
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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