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Wearing Ring NSN 4320-00-099-8744

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 4320-00-099-8744 NSN: 4320-00-099-8744

Features and Characteristics

Body Style
Grooved w/external locking flange
Groove Depth
0.188 inches
Groove Width
0.188 inches
Overall Length
1.063 inches
Body Outside Diameter
Between 5.374 inches and 5.375 inches
Body Inside Diameter
Between 4.479 inches and 4.487 inches
Distance From End To Groove Center
0.219 inches
Distance Between Groove Centers
0.609 inches
Distance Below Centerline
0.125 inches
Distance From End
0.313 inches
Corner Shape
Square all corners
Material
Copper alloy 903
Material Specification
Qq-c-390 d5 federal specification single material response
FSC
4320 Power And Hand Pumps
NIIN
000998744
NSN
4320000998744

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
H4320-699-8744
Cage Code:
03950
Status:
A
MSDS:
Part Number:
2-7-89BG
Cage Code:
10941
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 4320-00-099-8744
What are the manufacturers of nsn 4320000998744?
Does this nsn 4320000998744 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320000998744
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 4320000998744 contain any precious metals?
Precious metal content is unknown.
Does nsn 4320000998744 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320000998744?
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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  •   Certificate of Conformance
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