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NationalStockNumber.org

Wearing Ring NSN 4320-00-398-9389

Item Description

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

NSN 4320-00-398-9389 NSN: 4320-00-398-9389

Features and Characteristics

Body Style
Internal and external flange
Overall Length
0.728 inches
Bolt Circle Diameter
4.634 inches
Flange Diameter
5.095 inches
Body Outside Diameter
4.250 inches
Body Inside Diameter
3.715 inches
Left Side Flange Thickness
0.190 inches
Unthreaded Mounting Hole Diameter
0.205 inches
Bolt Hole Quantity
4
Internal Flange Inside Diameter
2.980 inches
Internal Flange Width
0.335 inches
Corner Shape
Square all corners
Special Features
Furnished with four screws
Material
Copper alloy
FSC
4320 Power And Hand Pumps
NIIN
003989389
NSN
4320003989389

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BS4-1858PC4
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS711-4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS711PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
C5A
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS712PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS716PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS731PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS1400PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS1401PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS4-1857PC4
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS537PC4US
Cage Code:
63857
Status:
A
MSDS:
Part Number:
BS706PC4US
Cage Code:
63857
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8413919520
  • NAICS: 333911
  • SITC: 74291
  • Description: Parts, nesoi, of pumps for liquids
  • End Use (Code 21100):
    Industrial engines

Q & A

Frequently asked questions for NSN 4320-00-398-9389
What are the manufacturers of nsn 4320003989389?
Does this nsn 4320003989389 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320003989389
A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. it is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. it may also be used as a diffuser ring in the suction and discharge throats of valves.
Does nsn 4320003989389 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320003989389 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320003989389?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22534
FIIG:
A19900
App. Key:
A
Cond. Code:
2
Status:
A

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