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Wearing Ring NSN 4320-00-218-3308

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 4320-00-218-3308 NSN: 4320-00-218-3308

Features and Characteristics

Body Style
Plain
Overall Length
0.500 inches
Bolt Circle Diameter
3.438 inches
Body Outside Diameter
Between 3.996 inches and 3.998 inches
Body Inside Diameter
2.845 inches
Unthreaded Mounting Hole Diameter
0.281 inches
Bolt Hole Quantity
3
Corner Shape
Square all corners
Surface Finish
125.0 microinches right face
Special Features
Two mtg holes counterbored 0.438 in. Diameter and 0.250 in. Deep
Material
Copper alloy
Material Specification
Mil-b-16261, gr 3 military specification single material response
FSC
4320 Power And Hand Pumps
NIIN
002183308
NSN
4320002183308

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
10360
Cage Code:
54402
Status:
A
MSDS:
Part Number:
255182-7
Cage Code:
93232
Status:
A
MSDS:
Part Number:
3118P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
S1-5221PC35
Cage Code:
54402
Status:
A
MSDS:
Part Number:
SL-5221PC35
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5182PC35
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 4320-00-218-3308
What are the manufacturers of nsn 4320002183308?
Does this nsn 4320002183308 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320002183308
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 4320002183308 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320002183308 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320002183308?
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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