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Stop-check Valve NSN 4820-01-420-4120

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 4820-01-420-4120 NSN: 4820-01-420-4120

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
End Application
Strategic sealift conversion ships class
Connection Style
Grooved (drop-in cartridge) all ends
Valve Operation Method
Automatic
Connection Type
Unthreaded cartridge all ends
Mounting Position
Horizontal
Maximum Operating Pressure
100.0 pounds per square inch single response
Special Features
Auxiliary spring; stainless disk
Material
Steel body
Style Designator
Straight through drop-in cartridge
FSC
4820 Nonpowered Valves
NIIN
014204120
NSN
4820014204120

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
526630 DN125
Cage Code:
S5786
Status:
A
MSDS:
Part Number:
FK30.70(2)GB 526630
Cage Code:
S5786
Status:
A
MSDS:
Part Number:
526630 DN100
Cage Code:
S5786
Status:
A
MSDS:
Part Number:
526630-0100
Cage Code:
S5786
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481302090
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of steel
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-420-4120
What are the manufacturers of nsn 4820014204120?
Does this nsn 4820014204120 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014204120
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 4820014204120 contain any precious metals?
No precious metal content.
Does nsn 4820014204120 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014204120?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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