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Check Valve NSN 4820-01-399-7921

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 4820-01-399-7921 NSN: 4820-01-399-7921

Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Weight
Bolt Hole Quantity
10 all ends
Maximum Operating Temp
200.0 degrees fahrenheit single response
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal
Valve Size
4.000 inches
Maximum Operating Pressure
1200.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Outside Diameter
8.690 inches all ends
Face To Face Distance
14.500 inches
Thickness
1.440 inches all ends
Bolt Hole Diameter
0.690 inches all ends
Bolt Circle Diameter
7.188 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy 964 flow control device
Material Specification
Mil-c-20159, uns c96400 military specification single material response flow control device
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through flanged ends
Reference Number Differentiating Characteristics
Quality control in accordance with navships 0948-045-7010 material identification and control instruction for subsafe items
FSC
4820 Nonpowered Valves
NIIN
013997921
NSN
4820013997921

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
DS-B-90301
Cage Code:
15187
Status:
A
MSDS:
Part Number:
211029333
Cage Code:
53711
Status:
A
MSDS:
Part Number:
211029333SS
Cage Code:
03950
Status:
A
MSDS:
Part Number:
DS-B-90301SS
Cage Code:
03950
Status:
A
MSDS:
Part Number:
211029333L1
Cage Code:
03950
Status:
A
MSDS:
Part Number:
DS-B-90301L1
Cage Code:
03950
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481301090
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of copper having a pressure rating of 850 kpa or over
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-399-7921
What are the manufacturers of nsn 4820013997921?
Does this nsn 4820013997921 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013997921
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 4820013997921 contain any precious metals?
No precious metal content.
Does nsn 4820013997921 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013997921?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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