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Stop-check Valve NSN 4820-00-185-6842

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 4820-00-185-6842 NSN: 4820-00-185-6842

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
10 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
Vertical
Valve Size
5.000 inches
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
9.062 inches all ends
Thickness
0.562 inches all ends
First Connection Face To Centerline Distance
7.125 inches
Bolt Hole Diameter
0.687 inches all ends
Second Connection Face To Centerline Distance
7.125 inches
Bolt Circle Diameter
7.812 inches all ends
Flange Face Design
Plain all ends
Material
Nickel alloy r-405 stem
Material Specification
Qq-c-390, alloy d4 federal specification single material response body
Media For Which Designed
Steam single response
Style Designator
Angle flanged ends
Test Data Document
03950-882035044 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
FSC
4820 Nonpowered Valves
NIIN
001856842
NSN
4820001856842

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
803-1385541-054AF
Cage Code:
80064
Status:
A
MSDS:
Part Number:
S4824-1385541
Cage Code:
53711
Status:
A
MSDS:

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 4820-00-185-6842
What are the manufacturers of nsn 4820001856842?
Does this nsn 4820001856842 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001856842
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 4820001856842 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001856842 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001856842?
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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