NSN 4730-01-159-0357, 4730011590357
REDUCER,TUBE

Federal Supply Classification: FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number: NIIN 011590357
Codification Country: United States
Item Name Code: INC 08506
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.

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DLMS^® Summary

National Stock Number 4730-01-159-0357

National Stock Number (NSN) 4730-01-159-0357, or NIIN 011590357, (reducer,tube) was assigned August 1, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 10 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 10 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over a year. There have been 3 contracts issued for this part number, with 3 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: SPE7M223V1154, SPE7M219V2002, SPE7M216V0813. The total value of the awarded contracts has been US$ 1,732.25.

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

There has been a small amount of 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 Apr 11, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 08506. [A STRAIGHT TUBE FITTING HAVING A DIFFERENT SIZE CONNECTION ON EACH END. IT IS DESIGNED TO JOIN TWO TUBES OF DIFFERENT SIZES. EXCLUDES:BUSHING (AS MODIFIED).]. 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 4730011590357 does not contain precious metals.

This information was last updated on Jun 01, 2025.

Technical Characteristics

CONNECTION STYLE: (AHNC) SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END 1ST END
CONNECTION TYPE: (AWLS) THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE: (AHNC) FLARELESS (TUBE) 2ND END
CONNECTION TYPE: (AWLS) THREADED INTERNAL TUBE 1ST END
MATERIAL: (MATT) STEEL CORROSION RESISTING OVERALL
MAXIMUM OPERATING PRESSURE: (CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: (CWFD) 0.3750 INCHES 1ST END
NOMINAL THREAD SIZE: (CQJX) 1.0625 INCHES ALL ENDS
NONDEFINITIVE SPEC/STD DATA: (ZZZT) 15 FIGURE
SEAT ANGLE: (CQRB) 37.0 DEGREES ALL ENDS
SPECIFICATION/STANDARD DATA: (ZZZK) 96906-MS51534 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT: (SFTT) PASSIVATE OVERALL
THREAD CLASS: (AAJD) 2A ALL ENDS
THREAD SERIES DESIGNATOR: (THSD) UNF 1ST END
THREAD QUANTITY PER INCH: (CMLP) 12 ALL ENDS
STYLE DESIGNATOR: (STYL) REDUCER BODY
THREAD DIRECTION: (AAJF) RIGHT-HAND
UNABLE TO DECODE: (ABHP) UNABLE TO DECODE
UNABLE TO DECODE: (ACTF) UNABLE TO DECODE
WORKING PRESSURE AND SERVICE TYPE: (CDPG) 5300.0 POUNDS PER SQUARE INCH NOMINAL ANY ACCEPTABLE
SURFACE TREATMENT: (SFTT) PASSIVATE
SURFACE TREATMENT: (SFTT) PASSIVATE OVERALLPASSIVATE
UNABLE TO DECODE: (ACTE) UNABLE TO DECODE
UNABLE TO DECODE: (ABUJ) UNABLE TO DECODE
FLANGE OUTSIDE DIAMETER: (AHTC) 1.222 INCHES NOMINAL
UNABLE TO DECODE: (AHTC) UNABLE TO DECODE
THREAD CLASS: (AAJD) 2A ALL ENDS2A
UNABLE TO DECODE: (AAJF) UNABLE TO DECODE
THREAD SIZE: (ABUJ) 1-1/16-12
UNABLE TO DECODE: (CDPG) UNABLE TO DECODE
MATERIAL: (MATT) STEEL COMP 303 OR STEEL CORROSION RESISTING OVERALLSTEEL COMP 316
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: (ACSV) 0.750 INCHES NOMINAL
FIRST END SEAT ANGLE IN DEG: (ACTE) 37.0
SCREW THREAD SERIES DESIGNATOR: (AJYP) UN
SURFACE TREATMENT: (SURF) PASSIVATED, QQ-P-35
THREAD CLASS: (AAJD) 2A
SECOND END SEAT ANGLE IN DEG: (ACTF) 37.0
OVERALL LENGTH: (ABHP) 1.470 INCHES NOMINAL
FLANGE WIDTH: (AGFF) 0.280 INCHES NOMINAL
UNABLE TO DECODE: (AGFF) UNABLE TO DECODE
UNABLE TO DECODE: (AJYP) UNABLE TO DECODE
MATERIAL: (MATL) STEEL, FED STD 66, COMP 303 OR STEEL, FED STD 66, COMP 316
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: (ACSV) 1.000 INCHES NOMINAL
UNABLE TO DECODE: (ACSV) UNABLE TO DECODE
STYLE DESIGNATOR: (STYL) ERR-090