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Stop-check Valve NSN 4820-00-187-6698

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 4820-00-187-6698 NSN: 4820-00-187-6698

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Features and Characteristics

Offset Distance
2.250 inches
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Valve Operation Method
Manual
Flange Shape
Round 1st end
Connection Type
Flange 1st end
Mounting Position
Horizontal
Features Provided
Bonnet packing
Valve Size
1.500 inches
Maximum Operating Pressure
600.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Outside Diameter
6.125 inches 1st end
Face To Face Distance
12.000 inches
Thickness
0.875 inches 1st end
Flange Face Design
Raised straight 1st end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
2.875 inches 1st end
Material
Nickel alloy 400 stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through w/offset flanged ends
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
FSC
4820 Nonpowered Valves
NIIN
001876698
NSN
4820001876698

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4578FNPP
Cage Code:
04537
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481309000
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of materials other than copper, iron or steel
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-187-6698
What are the manufacturers of nsn 4820001876698?
Does this nsn 4820001876698 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001876698
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 4820001876698 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001876698 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001876698?
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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