Model: D952 PIECE 69

Safety Relief Valve

Properties:

Thread Class
3a all ends
Thread Class
3b 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
G4 gasket sea (boss) 2nd end
Connection Style
G43 external seat for gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Connection Type
Threaded internal boss 2nd end
Thready Qty Per Inch (tpi)
20 1st end
Adjustable Pressure Range
+10.0/+2400.0 pounds per square inch
Maximum Operating Pressure
2500.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
90.0 degrees 1st end
Opening Pressure Setting
400.0 pounds per square inch
Material
Aluminum alloy 2024 body
Media For Which Designed
Refrigerant 12 3rd response
Media For Which Designed
Air 1st response
Media For Which Designed
Ammonia, gaseous 2nd response
Media For Which Designed
Ethylene glycol 4th response
Media For Which Designed
Helium 5th response
Thread Series Designator
Unf 2nd end
Thread Series Designator
Unj 1st end
NSN
4820-01-293-2440
Part Number
D952 PIECE 69
Description
Valve,safety Relief
CAGE
28953

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.

Part D952 PIECE 69 NSN 4820-01-293-2440

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
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:
9
ACC:
Trailers/Vehicles

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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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