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Safety Relief Valve NSN 4820-01-301-7985

Item Description

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.

NSN 4820-01-301-7985 NSN: 4820-01-301-7985

Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Spring
Bolt Hole Quantity
4 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes 2nd end
Connection Type
Flange 1st end
Valve Size
2.000 inches
Opening Pressure Setting
600.0 pounds per square inch
Outside Diameter
6.000 inches 1st end
Thickness
0.688 inches 2nd end
First Connection Face To Centerline Distance
4.500 inches
Bolt Hole Diameter
0.625 inches 2nd end
Second Connection Face To Centerline Distance
4.125 inches
Bolt Circle Diameter
4.750 inches 1st end
Flange Face Design
Raised straight 2nd end
Raised Face Height
0.500 inches 2nd end
Raised Face Diameter
4.000 inches 1st end
Material
Stainless steel stem
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013017985
NSN
4820013017985

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
26DA12-170 1IN SET 600PSI
Cage Code:
72352
Status:
A
MSDS:
Part Number:
16961-F SN 91516-19-A10
Cage Code:
72352
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481400000
  • NAICS: 332911
  • SITC: 74740
  • Description: Safety or relief valves
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-301-7985
What are the manufacturers of nsn 4820013017985?
Does this nsn 4820013017985 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013017985
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.
Does nsn 4820013017985 contain any precious metals?
No precious metal content.
Does nsn 4820013017985 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013017985?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
App. Key:
AP
Cond. Code:
1
Status:
A

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