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Stop-check Valve NSN 4820-00-203-7917

Item Description

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

NSN 4820-00-203-7917 NSN: 4820-00-203-7917

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Bolt Hole Quantity
6 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal or vertical
Valve Size
2.500 inches
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
6.125 inches all ends
Thickness
0.500 inches all ends
First Connection Face To Centerline Distance
4.500 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
4.500 inches
Bolt Circle Diameter
5.000 inches all ends
Flange Face Design
Plain all ends
Material
Nickel alloy stem
Media For Which Designed
Steam single response
Style Designator
Angle flanged ends
FSC
4820 Nonpowered Valves
NIIN
002037917
NSN
4820002037917

Manufacturer Part Numbers

Part numbers registered to this national stock number.

No part numbers found for this NSN.

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481301010
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of copper having a pressure rating under 850 kpa
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-203-7917
What are the manufacturers of nsn 4820002037917?
Does this nsn 4820002037917 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002037917
A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. in the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. in the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. the valve disk may be spring loaded. it may be inline or cartridge (manifold) design. see also valve (1), lift-check and valve (1), stop-lift-check.
Does nsn 4820002037917 contain any precious metals?
No precious metal content.
Does nsn 4820002037917 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002037917?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
App. Key:
Cond. Code:
2
Status:
A

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