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
2
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.:
1
App. Key:
AR
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
SO
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
Z
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

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