Model: A70089-1

Safety Relief Valve

Properties:

Thread Class
3a 1st end
Thread Class
3b 2nd end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
-65.0 degrees fahrenheit 1st response
Maximum Operating Temp
275.0 degrees fahrenheit 2nd response
Connection Style
G4 gasket sea (boss) 2nd end
Connection Style
G45 flareless (tube) 1st end
Connection Style
Flareless (tube) 1st end
Connection Style
Gasket sea (boss) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal boss 2nd end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
20 1st end
Thready Qty Per Inch (tpi)
20 2nd end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.437 inches 1st end
Thread Size
0.438 inches 2nd end
Seat Angle
12.0 degrees 1st end
Seat Angle
60.0 degrees 2nd end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Outside Diameter Tube Accommodated
0.250 inches 2nd end
Material
Aluminum alloy body
Material
Rubber synthetic seat
Material
Stainless steel flow control device
Style Designator
Straight thru
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
NSN
4820-00-704-0666
Part Number
A70089-1
Description
Valve,safety Relief
CAGE
81982

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 A70089-1 NSN 4820-00-704-0666

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:
U
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:
Construction Materials

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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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