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Wearing Ring NSN 4320-00-218-3487

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 4320-00-218-3487 NSN: 4320-00-218-3487

Features and Characteristics

Body Style
Internal and external flange
Chamfer Length
0.125 inches inside right corner
Overall Length
1.125 inches
Bolt Circle Diameter
5.290 inches
Flange Diameter
5.845 inches
Body Outside Diameter
Between 4.624 inches and 4.625 inches
Body Inside Diameter
4.095 inches
Corner Radius
0.312 inches inside left corner
Left Side Flange Thickness
0.375 inches
Unthreaded Mounting Hole Diameter
0.281 inches
Bolt Hole Quantity
6
Internal Flange Inside Diameter
2.875 inches
Internal Flange Width
0.313 inches
Corner Shape
Square outside right corner
Chamfer Angle
45.0 degrees inside right corner
Special Features
Mtg holes counterbored 0.406 in. Diameter and0.250 in. Deep
Material
Copper alloy
Material Specification
Mil-b-16261, gr 4 military specification single material response
FSC
4320 Power And Hand Pumps
NIIN
002183487
NSN
4320002183487

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
255278-05
Cage Code:
93232
Status:
A
MSDS:
Part Number:
255278-5
Cage Code:
93232
Status:
A
MSDS:
Part Number:
789P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
SL5278PC51
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 4320-00-218-3487
What are the manufacturers of nsn 4320002183487?
Does this nsn 4320002183487 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320002183487
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 4320002183487 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320002183487 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320002183487?
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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