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Restrictor Check Valve NSN 4820-00-413-3399

Item Description

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

NSN 4820-00-413-3399 NSN: 4820-00-413-3399

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
275.0 degrees fahrenheit single response
Connection Style
Flareless all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.437 inches all ends
Seat Angle
12.0 degrees all ends
Special Features
Bulkhead thread on inlet end, restricted flow 0.64 in.Gpm at 1500 psi
Material
Steel comp 303 flow control device
Material Specification
Qq-s-764, type 303-cancelled federal specification single material response flow control device
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
Surface Treatment
Enamel
Surface Treatment Specification
Mil-c-22750 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Unjf all ends
FSC
4820 Nonpowered Valves
NIIN
004133399
NSN
4820004133399

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1R3142-38
Cage Code:
26044
Status:
A
MSDS:
Part Number:
4R113-38
Cage Code:
82829
Status:
A
MSDS:
Part Number:
215-32320-38
Cage Code:
80378
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 4820-00-413-3399
What are the manufacturers of nsn 4820004133399?
Does this nsn 4820004133399 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004133399
A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. it does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Does nsn 4820004133399 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004133399 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004133399?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
20520
FIIG:
A530B0
App. Key:
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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