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Stop-check Valve NSN 4820-01-221-2949

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 4820-01-221-2949 NSN: 4820-01-221-2949

Features and Characteristics

Thread Direction
Right-hand 1st end
Bonnet Type
Packing retaining
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Manual
Connection Type
Threaded external pipe 1st end
Mounting Position
Horizontal
Thread Size
0.250 inches 1st end
Material
Aluminum
Style Designator
Straight thru
Supplementary Features
Flow control device: stem
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
012212949
NSN
4820012212949

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
893-029-000
Cage Code:
18966
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 4820-01-221-2949
What are the manufacturers of nsn 4820012212949?
Does this nsn 4820012212949 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012212949
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 4820012212949 contain any precious metals?
No precious metal content.
Does nsn 4820012212949 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012212949?
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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