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Wearing Ring NSN 4320-00-903-6694

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 4320-00-903-6694 NSN: 4320-00-903-6694

Features and Characteristics

Body Style
Plain w/internal flange
Overall Length
Between 0.490 inches and 0.510 inches
Bolt Circle Diameter
Between 8.307 inches and 8.317 inches
Body Outside Diameter
Between 9.252 inches and 9.257 inches
Body Inside Diameter
Between 8.990 inches and 9.010 inches
Unthreaded Mounting Hole Diameter
Between 0.264 inches and 0.271 inches
Bolt Hole Quantity
16
Internal Flange Inside Diameter
Between 7.770 inches and 7.790 inches
Internal Flange Width
Between 0.240 inches and 0.260 inches
Corner Shape
Square all corners
Surface Finish
8.0 microinches outside
Material
Aluminum alloy 2024
Material Specification
Qq-a-250/4, t351 federal specification single material response
FSC
4320 Power And Hand Pumps
NIIN
009036694
NSN
4320009036694

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
540-011-411-3
Cage Code:
97499
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 4320-00-903-6694
What are the manufacturers of nsn 4320009036694?
Does this nsn 4320009036694 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320009036694
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 4320009036694 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320009036694 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320009036694?
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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