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Wearing Ring NSN 4320-00-398-8020

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 4320-00-398-8020 NSN: 4320-00-398-8020

Features and Characteristics

Body Style
Internal flange w/external locking flange
Chamfer Length
0.093 inches outside left corner
Overall Length
0.978 inches
Body Outside Diameter
5.000 inches
Body Inside Diameter
4.165 inches
Corner Radius
0.250 inches inside right corner
Left Side Flange Thickness
0.195 inches
Right Side Flange Thickness
0.195 inches
Distance Between Flanges
0.588 inches
End To Flange Distance
0.687 inches
Internal Flange Inside Diameter
3.555 inches
Internal Flange Width
0.625 inches
Smallest External Anchor Flange Radius
2.450 inches
Largest External Anchor Flange Radius
2.710 inches
Distance Below Centerline
0.125 inches
Distance From End
0.250 inches
Corner Shape
Square outside right corner
Chamfer Angle
15.0 degrees outside left corner
Material
Copper alloy
FSC
4320 Power And Hand Pumps
NIIN
003988020
NSN
4320003988020

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4668P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL3482
Cage Code:
54402
Status:
A
MSDS:
Part Number:
10442
Cage Code:
54402
Status:
A
MSDS:
Part Number:
MAI3988020
Cage Code:
55084
Status:
A
MSDS:
Part Number:
125085
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4232PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4234PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4639PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4732PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4736PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5612PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5672PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5602PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5608PC81
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5676PC81
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 4320-00-398-8020
What are the manufacturers of nsn 4320003988020?
Does this nsn 4320003988020 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320003988020
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 4320003988020 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320003988020 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320003988020?
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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