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Wearing Ring NSN 4320-00-218-4221

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 4320-00-218-4221 NSN: 4320-00-218-4221

Features and Characteristics

Body Style
External locking flange
Groove Depth
0.057 inches
Groove Width
0.075 inches
Overall Length
0.960 inches
Body Outside Diameter
4.375 inches
Body Inside Diameter
3.875 inches
Corner Radius
0.125 inches inside right corner
Left Side Flange Thickness
0.141 inches
Right Side Flange Thickness
0.172 inches
Distance Between Flanges
0.625 inches
End To Flange Distance
0.250 inches
Internal Flange Width
0.188 inches
Center Flange Thickness
0.475 inches
Smallest External Anchor Flange Radius
2.125 inches
Largest External Anchor Flange Radius
2.438 inches
Distance Below Centerline
0.125 inches
Corner Shape
Square outside right corner
Material
Copper alloy
FSC
4320 Power And Hand Pumps
NIIN
002184221
NSN
4320002184221

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
C105A
Cage Code:
63857
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 4320-00-218-4221
What are the manufacturers of nsn 4320002184221?
Does this nsn 4320002184221 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320002184221
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 4320002184221 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320002184221 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320002184221?
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
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