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Wearing Ring NSN 4320-00-398-8163

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 4320-00-398-8163 NSN: 4320-00-398-8163

Features and Characteristics

Body Style
Internal flange w/external locking flange
Chamfer Length
0.938 inches inside right corner
Overall Length
2.125 inches
Body Outside Diameter
Between 9.244 inches and 9.246 inches
Body Inside Diameter
8.345 inches
Corner Radius
0.281 inches inside right corner
Left Side Flange Thickness
0.438 inches
Right Side Flange Thickness
0.562 inches
Distance Between Flanges
Between 1.125 inches and 1.128 inches
End To Flange Distance
1.625 inches
Internal Flange Inside Diameter
7.125 inches
Internal Flange Width
0.562 inches
Smallest External Anchor Flange Radius
4.500 inches
Largest External Anchor Flange Radius
4.938 inches
Distance Below Centerline
0.063 inches
Distance From End
0.500 inches
Corner Shape
Square outside right corner
Surface Finish
32.0 microinches left face
Chamfer Angle
15.0 degrees inside right corner
Material
Copper alloy
Material Specification
Qq-c-390, type 1 federal specification single material response
FSC
4320 Power And Hand Pumps
NIIN
003988163
NSN
4320003988163

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
CS4320-0201
Cage Code:
16236
Status:
A
MSDS:
Part Number:
9398P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
256123-13
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL6123PC69
Cage Code:
93232
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 4320-00-398-8163
What are the manufacturers of nsn 4320003988163?
Does this nsn 4320003988163 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320003988163
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 4320003988163 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320003988163 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320003988163?
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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