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Wearing Ring NSN 4320-00-218-3417

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 4320-00-218-3417 NSN: 4320-00-218-3417

Features and Characteristics

Body Style
Internal flange w/external locking flange
Overall Length
1.130 inches
Body Outside Diameter
6.875 inches
Body Inside Diameter
4.950 inches
Corner Radius
0.250 inches inside right corner
Left Side Flange Thickness
0.320 inches
Right Side Flange Thickness
0.320 inches
Distance Between Flanges
0.490 inches
End To Flange Distance
0.812 inches
Internal Flange Inside Diameter
4.128 inches
Internal Flange Width
0.250 inches
Smallest External Anchor Flange Radius
3.260 inches
Largest External Anchor Flange Radius
3.685 inches
Distance Below Centerline
0.125 inches
Distance From End
0.375 inches
Corner Shape
Square outside right corner
Special Features
Hub 5.500 in.Od by 0.125 in.Lg located on external locking flange end
Material
Copper alloy
Material Specification
Navy 46b9 national specification single material response
FSC
4320 Power And Hand Pumps
NIIN
002183417
NSN
4320002183417

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SL4221PC72
Cage Code:
93232
Status:
A
MSDS:
Part Number:
168565EE
Cage Code:
93232
Status:
A
MSDS:
Part Number:
4374P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL4219PC72
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 4320-00-218-3417
What are the manufacturers of nsn 4320002183417?
Does this nsn 4320002183417 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320002183417
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 4320002183417 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320002183417 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320002183417?
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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