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Wearing Ring NSN 4320-01-493-3803

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 4320-01-493-3803 NSN: 4320-01-493-3803

Features and Characteristics

End Application
Cvn-76, 68, and 69 steam reboiler feed pump
Special Features
Valve bronze material; manufacturer material spec. C031a; upper case ring
Material
Copper alloy
Material Specification
Astm b271 alloy c9220 assn standard 1st material response or astm b505 alloy c9220 assn standard 1st material response or astm b584 alloy c9220 assn standard 1st material response
FSC
4320 Power And Hand Pumps
NIIN
014933803
NSN
4320014933803

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0654C0559C031A
Cage Code:
63857
Status:
A
MSDS:
Part Number:
999F0904
Cage Code:
63857
Status:
A
MSDS:
Part Number:
999F0904 FIND NO. 7
Cage Code:
63857
Status:
A
MSDS:
Part Number:
654C0559
Cage Code:
63857
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 4320-01-493-3803
What are the manufacturers of nsn 4320014933803?
Does this nsn 4320014933803 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4320014933803
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 4320014933803 contain any precious metals?
No precious metal content.
Does nsn 4320014933803 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4320014933803?
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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