Model: 1856991

Safety Relief Valve

Properties:

Thread Class
2a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Ball
End Application
4730-01-105-1306 manifold hydraulic fluid stabilizer assembly onboard 270 ft wmec coast guard vessels
Connection Style
G9 plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded cartridge 1st end
Adjustable Pressure Range
+1250.0/+5000.0 pounds per square inch
Thread Size
1.312 inches 1st end
Material
Steel
Thread Series Designator
Unf 1st end
NSN
4820-01-103-9020
Part Number
1856991
Description
Valve,safety Relief
CAGE
03956

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 1856991 NSN 4820-01-103-9020

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

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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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