R4438

Safety Relief Valve

NSN 4820-00-622-0166

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

UOM:

NIIN:

006220166

Technical Specifications of NSN

Pipe Size Accommodated:

0.375 inches 1st end

Thread Direction:

Right-hand 1st end

Flow Control Device:

Diaphragm

Connection Style:

G46b plain (pipe) 1st end

Connection Style:

Plain (pipe) 1st end

Valve Operation Method:

Air

Connection Type:

Threaded external pipe 1st end

Features Provided:

Pressure tight outlet side

Thready Qty Per Inch (tpi):

18 1st end

Maximum Operating Pressure:

0.250 pounds per square inch single response

Thread Size:

0.375 inches 1st end

Material:

Steel body

Material:

Steel seat

Media For Which Designed:

Air single response

Style Designator:

Straight thru

Thread Series Designator:

Npt 1st end

NSN:

4820-00-622-0166

Item Name:

Valve,relief,pressure

Cage Code:

51501

Other Related Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

8330739

Cage Code:

19207

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Pressure Relief Valve"

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.