Wearing Ring

NSN: 4320-01-642-3540 | Model: 956693-01

A cylindrical item with or without flang (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 Properties and Flags

NATO Stock Number

4320-01-642-3540

DEMIL

Yes - ITAR Controlled (Code Q)

Part Name Assigned By Controlling Agency

Ring, casing undersized

Special Features

Material is nicu; size 12.38 diameter x 10.95 x 2.50

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4320-01-642-3540 Datasheet

Supply Class (FSC):

Power And Hand Pumps

Cross Reference:

956693-01
95669301PH
RY-166400 ITEM 13 ALTERNATE
ACN LE-T40-8191

Cage Codes:

Mechanical Wright Electro Curtiss (CAGE 0UBG9)
Electric Boat Corporation (CAGE 96169)

Schedule B & Trade:

Schedule B: 8413919520 (NAICS 333911)

Parts, nesoi, of pumps for liquids
SITC: 74291

Parts of pumps for liquids
End Use: 21100

Industrial engines

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 4320-01-642-3540 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
United Kingdom
What is the NIIN of NSN 4320-01-642-3540?
016423540 or 01-642-3540
Does NSN 4320-01-642-3540 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4320-01-642-3540?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Feb 24, 2015