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Wearing Ring NSN 4320-00-398-6902

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 4320-00-398-6902 NSN: 4320-00-398-6902

Features and Characteristics

Overall Length
1.625 inches
Body Outside Diameter
Between 6.368 inches and 6.372 inches
Body Inside Diameter
5.569 inches
End To Flange Distance
0.625 inches
Internal Flange Inside Diameter
4.500 inches
Center Flange Thickness
0.374 inches
Smallest External Anchor Flange Radius
3.375 inches
Largest External Anchor Flange Radius
3.562 inches
Distance Below Centerline
0.062 inches
Corner Shape
Chamfered inside right corner
Chamfer Angle
30.0 degrees inside right corner
Material
Copper alloy
FSC
4320 Power And Hand Pumps
NIIN
003986902
NSN
4320003986902

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
CS4320-0134
Cage Code:
16236
Status:
A
MSDS:
Part Number:
1-583HZ
Cage Code:
16712
Status:
A
MSDS:
Part Number:
I583HZ
Cage Code:
16712
Status:
A
MSDS:
Part Number:
H4320-398-6902
Cage Code:
12004
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 4320-00-398-6902
What are the manufacturers of nsn 4320003986902?
Does this nsn 4320003986902 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320003986902
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 4320003986902 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320003986902 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320003986902?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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