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NSN 4730-00-539-8900, 4730005398900
RESTRICTOR,FLUID FLOW

Federal Supply Classification
FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number
NIIN 005398900
Codification Country
United States
Item Name Code
INC 18263
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Availability: Request Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4730-00-539-8900

National Stock Number (NSN) 4730-00-539-8900, or NIIN 005398900, (restrictor,fluid flow) was assigned September 25, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 18263. [AN ITEM OF SOLID ONE-PIECE CONSTRUCTION, DESIGNED TO RESTRICT THE FLOW OF A FLUID THROUGH IT. IT HAS AN ORIFICE OF A SMALLER SIZE THAN THE DIAMETER OF FLOW INTO IT. EXCLUDES:ITEMS SUCH AS VALVE (1), (AS MODIFIED); AND OTHERS WITH AN ADJUSTABLE ORIFICE. EXCLUDES:PIPE, TUBE, OR HOSE FITTINGS WITH RESTRICTED PASSAGES AND ITEMS DESIGNED TO TEST FLUID FLOW. FOR ITEMS CONTAINING SCREENS OR FILTERS, SEE RESTRICTOR UNIT, FLUID FLOW.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730005398900 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

DESIGN TYPE
(APGF) TUBULAR
LENGTH
(ABRY) 0.812 INCHES NOMINAL
ORIFICE DIAMETER
(AMSF) 0.078 INCHES NOMINAL
OUTSIDE DIAMETER
(ABKV) 0.500 INCHES NOMINAL
MATERIAL
(MATT) STEEL
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.688 INCHES NOMINAL
THREAD SERIES
(BZRR) UNF
THREAD PROVISION
(AFEW) THREADED
THREAD SIZE DESIGNATOR
(ABVK) 1/2-20
MATERIAL
(MATL) STEEL
UNABLE TO DECODE
(MATL) UNABLE TO DECODE

Manufacturer Part Numbers


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