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Wearing Ring NSN 4320-00-308-6725

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 4320-00-308-6725 NSN: 4320-00-308-6725

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Features and Characteristics

Body Style
External locking flange
Overall Length
0.812 inches
Body Outside Diameter
Between 5.498 inches and 5.499 inches
Body Inside Diameter
4.470 inches
End To Flange Distance
0.281 inches
Center Flange Thickness
0.247 inches
Smallest External Anchor Flange Radius
2.938 inches
Largest External Anchor Flange Radius
3.094 inches
Distance Below Centerline
0.125 inches
Anchor Flange Width
0.185 inches
Corner Shape
Square all corners
Surface Finish
125.0 microinches all surfaces
Material
Steel
Material Specification
Mil-s-16993 military specification single material response
FSC
4320 Power And Hand Pumps
NIIN
003086725
NSN
4320003086725

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
H4320-308-6725
Cage Code:
03950
Status:
A
MSDS:
Part Number:
S5600H3234968PC9-1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
3F3664-9-1
Cage Code:
10171
Status:
A
MSDS:
Part Number:
S5600H3234968
Cage Code:
80064
Status:
A
MSDS:
Part Number:
3F3664
Cage Code:
10171
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 4320-00-308-6725
What are the manufacturers of nsn 4320003086725?
Does this nsn 4320003086725 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320003086725
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 4320003086725 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320003086725 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320003086725?
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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