Model: P56-344-400

Pressure And Temper Relief Valve

Special Features:

Raised face slotted eight places

Properties:

Body Material

Steel, stainless, type 303

Body Style

Straight thru

Tempurature Rating

-70.0 degrees fahrenheit

Tempurature Rating

500.0 degrees fahrenheit

Media For Which Designed

Air or nitrogen, gaseous

First End Connection Type

Threaded external gas cylinder

First End Style Designator

Gasket seal

First End Thread Size And Series/type Designator

0.312-24 unf

First End Thread Direction

Right-hand

Second End Relationship With First End

Not identical

Second End Connection Type

Raised face flange

Second End Style Designator

Plain

Second End Raised Face Diameter

Between 0.485 inches and 0.495 inches

Second End Flange Shape Style

Hexagon

Second End Flange Shape Style

Hexagon w/o bolt holes

Second End Flange Thickness

Between 0.175 inches and 0.205 inches

Second End Width Across Flats

0.500 inches

Flow Control Device

Poppet

End Connection Quantity

Valve Discharge Flow Rate

Not rated

Tempurature Adjustability

Not adjustable

NSN

4820-00-145-5147

Part Number

P56-344-400

Description

Valve,relief,pressure And Temper

CAGE

91816

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

Part P56-344-400 NSN 4820-00-145-5147

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16996

FIIG:

A07100

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

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:

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 8481400000
SITC: 74740
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Safety or relief valves