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Wearing Ring NSN 4320-00-860-7979

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 4320-00-860-7979 NSN: 4320-00-860-7979

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Features and Characteristics

Body Style
External flange
Chamfer Length
0.062 inches outside right corner
Hole Depth
0.094 inches
Groove Depth
0.500 inches
Overall Length
0.625 inches
Bolt Circle Diameter
4.500 inches
Flange Diameter
6.875 inches
Body Outside Diameter
Between 5.372 inches and 5.373 inches
Body Inside Diameter
Between 4.120 inches and 4.121 inches
Left Side Flange Thickness
0.250 inches
Unthreaded Mounting Hole Diameter
0.125 inches
Bolt Hole Quantity
4
End To Flange Distance
0.375 inches
Groove Quantity
3
Corner Shape
Square outside left corner
Chamfer Angle
45.0 degrees outside right corner
Special Features
Mtg holes counterbored
Material
Copper alloy
Material Specification
Mil-b-16261 military specification single material response
FSC
4320 Power And Hand Pumps
NIIN
008607979
NSN
4320008607979

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
378D677H01
Cage Code:
90099
Status:
A
MSDS:
Part Number:
379D684PC4
Cage Code:
90099
Status:
A
MSDS:
Part Number:
379D677H01
Cage Code:
5N842
Status:
A
MSDS:
Part Number:
379 D 677-01
Cage Code:
90099
Status:
A
MSDS:
Part Number:
379D684
Cage Code:
79500
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 4320-00-860-7979
What are the manufacturers of nsn 4320008607979?
Does this nsn 4320008607979 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320008607979
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 4320008607979 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320008607979 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320008607979?
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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