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Wearing Ring NSN 4320-01-213-7731

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 4320-01-213-7731 NSN: 4320-01-213-7731

Features and Characteristics

Body Style
External flange
Overall Length
0.625 inches
Bolt Circle Diameter
5.625 inches
Flange Diameter
6.187 inches
Body Outside Diameter
5.186 inches
Body Inside Diameter
4.875 inches
Left Side Flange Thickness
0.187 inches
Unthreaded Mounting Hole Diameter
0.221 inches
Bolt Hole Quantity
4
End Application
Warren pumps model 3-1/2-sed-8 centrifugal pump
Corner Shape
Square all corners
Surface Finish
125.0 microinches all surfaces
Material
Copper alloy
Material Specification
Mil-b-16261, grade 3 military specification single material response
FSC
4320 Power And Hand Pumps
NIIN
012137731
NSN
4320012137731

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
654B0182C051A
Cage Code:
63857
Status:
A
MSDS:
Part Number:
654B0182
Cage Code:
63857
Status:
A
MSDS:
Part Number:
999R0228
Cage Code:
63857
Status:
A
MSDS:
Part Number:
999R0228 PIECE 5
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 4320-01-213-7731
What are the manufacturers of nsn 4320012137731?
Does this nsn 4320012137731 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320012137731
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 4320012137731 contain any precious metals?
No precious metal content.
Does nsn 4320012137731 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320012137731?
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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