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NSN 4730-00-297-0032, 4730002970032
RESTRICTOR,FLUID FLOW

Federal Supply Classification
FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number
NIIN 002970032
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: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4730-00-297-0032

National Stock Number (NSN) 4730-00-297-0032, or NIIN 002970032, (restrictor,fluid flow) was assigned September 26, 1973 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. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over a year. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M321P3986, SPE7M321P3388. The total value of the awarded contracts has been US$ 374.91.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 01, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. 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 4730002970032 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

DESIGN TYPE
(APGF) TUBULAR, HEX SHAPE
HOSE/TUBE SIZE FOR WHICH DESIGNED
(CCFK) 1/4 IN. OD TUBE
ORIFICE DIAMETER
(AMSF) 0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
OUTSIDE DIAMETER
(ABKV) 0.688 INCHES NOMINAL
LENGTH
(ABRY) 1.250 INCHES NOMINAL
MATERIAL
(MATT) STEEL COMP 303
SPECIAL FEATURES
(FEAT) RESTRICTOR IDENTICAL TO AN815-4C EXCEPT SINTERED MONEL POWDER FUSED INTEGRALLY WITH WALLS OF PLUG
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.475 INCHES NOMINAL
THREAD SERIES
(BZRR) UNF
THREAD PROVISION
(AFEW) THREADED
THREAD SIZE DESIGNATOR
(ABVK) 7/16-20
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATL) STEEL, QQ-S-763, CLASS 303

Manufacturer Part Numbers

DR4

RNCC
5
RNVC
9
DR46

RNCC
5
RNVC
9
DR46

RNCC
3
RNVC
2

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