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Check Valve NSN 4820-01-052-3974

Item Description

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

NSN 4820-01-052-3974 NSN: 4820-01-052-3974

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit single response
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
20 all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees all ends
Special Features
Craking pressure 3.0 psi
Material
Steel comp 304 flow control device and steel comp 303 flow control device
Material Specification
Qq-s-763, class 304 federal specification 1st material response flow control device and qq-s-764, type 303 federal specification 2nd material response flow control device
Media For Which Designed
Hydraulic fluid, mineral base 2nd response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Unj all ends
FSC
4820 Nonpowered Valves
NIIN
010523974
NSN
4820010523974

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
488-4D2-3
Cage Code:
09990
Status:
A
MSDS:
Part Number:
488-4D2-2
Cage Code:
09990
Status:
A
MSDS:
Part Number:
9-1862-4
Cage Code:
86768
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 4820-01-052-3974
What are the manufacturers of nsn 4820010523974?
Does this nsn 4820010523974 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010523974
A valve permitting flow in one direction only. it does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. it may be inline or cartridge (manifold) design.
Does nsn 4820010523974 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010523974 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010523974?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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