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Wearing Ring NSN 4320-00-677-0188

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 4320-00-677-0188 NSN: 4320-00-677-0188

Features and Characteristics

Body Style
Internal flange w/external locking flange
Overall Length
1.750 inches
Body Outside Diameter
Between 11.621 inches and 11.623 inches
Body Inside Diameter
Between 8.875 inches and 8.878 inches
Corner Radius
0.750 inches inside right corner
Left Side Flange Thickness
0.375 inches
Right Side Flange Thickness
0.375 inches
Distance Between Flanges
Between 1.005 inches and 1.007 inches
End To Flange Distance
1.375 inches
Internal Flange Inside Diameter
7.625 inches
Internal Flange Width
0.375 inches
Smallest External Anchor Flange Radius
5.719 inches
Largest External Anchor Flange Radius
6.032 inches
Distance Below Centerline
0.094 inches
Distance From End
0.500 inches
Corner Shape
Square outside right corner
Surface Finish
125.0 microinches all surfaces
Special Features
Grooved on external flange 0.750 in. Diameter by 1.250 in. Deep with 0.375 in. Radius at closed end on a 10.250 in. Diameter center line of groove
Material
Copper alloy
FSC
4320 Power And Hand Pumps
NIIN
006770188
NSN
4320006770188

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
17093P
Cage Code:
93232
Status:
A
MSDS:
Part Number:
RY118738
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 4320-00-677-0188
What are the manufacturers of nsn 4320006770188?
Does this nsn 4320006770188 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320006770188
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 4320006770188 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320006770188 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320006770188?
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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