Model: K874559-001

Safety Relief Valve

Special Features:

Lock screw, adjustment, spring, and poppet material corrosion resistant steel with passivate finish; normal operating temperature plus 280.0 deg. F; temperature plus 450.0 deg. F; length 1.645 in.; inside dia. 0.335 to 0.337 in.; outside dia. 0.434 to 0.435 in.; distance across hex head is 0.813 in.

Properties:

Flow Control Device
Poppet
Valve Discharge Flow Rate
5.0 gallons per minute
Maximum Operating Temp
450.0 degrees fahrenheit single response
Minimum Operating Temp
-40.0 degrees fahrenheit
Valve Operation Method
Automatic
Maximum Operating Pressure
115.0 pounds per square inch single response
Opening Pressure Setting
90.0 pounds per square inch
Material
Aluminum alloy 2024 body
Material
Rubber fluorocarbon class fpm packing
Media For Which Designed
Fuel/oil, hydrocarbon single response
Surface Treatment
Anodize
NSN
4820-01-473-1364
Part Number
K874559-001
Description
Valve,safety Relief
CAGE
84955

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 K874559-001 NSN 4820-01-473-1364

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:
A
ESD:
A
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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