NSN 4720-00-515-0311, 4720005150311
Cancelled -> Replaced by 4720004770441

Federal Supply Classification: FSC 4720 - Hose and Flexible Tubing
National Item Identification Number: NIIN 005150311
Codification Country: United States
Item Name Code: INC 20311
Criticality: (F) This item is a Flight Safety Critical Aircraft Part (FSCAP).
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 4720-00-515-0311

National Stock Number (NSN) 4720-00-515-0311, or NIIN 005150311, (hose assembly,nonmetallic) was assigned August 11, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 4720004770441, 4720004730149.

There are 8 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers 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 13 contracts issued for this part number, with 72 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: SPE7MX23F128N, SPE7MX22F9406, SPE7MX21F0027, SPE7M120F5723, SPE7M120F5723. The total value of the awarded contracts has been US$ 1,649,370.14.

This NSN is somewhat common among different platforms, belonging to 7 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 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 20311. [A LENGTH OF NONMETALLIC HOSE WITH FITTINGS ON ONE OR BOTH ENDS. FOR ITEMS WITHOUT FITTINGS, SEE HOSE, NONMETALLIC. EXCLUDES HOSE ASSEMBLY, AIR DUCT; AND HOSE ASSEMBLY, AIR DUCT, AIR BREATHING.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4720005150311 does not contain precious metals.

This information was last updated on Jun 01, 2025.

Technical Characteristics

TEMP RATING: (ABJH) -65.0 DEG FAHRENHEIT AND 350.0 DEG FAHRENHEIT SINGLE RESPONSE
END CONNECTION DESIGN: (AKUU) STRAIGHT 1ST END
END CONNECTION DESIGN: (AKUU) STRAIGHT 2ND END
END FLANGE CONSTRUCTION: (AKUT) SOLID 2ND END
BOLT HOLE DIAMETER: (AHNX) 0.266 INCHES MINIMUM AND 0.276 INCHES MAXIMUM 2ND END
BOLT HOLE QUANTITY: (AECS) 4 2ND END
BURST TEST PRESSURE: (CQBD) 1200.0 POUNDS PER SQUARE INCH
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: (ADUY) 1.312 INCHES NOMINAL 2ND END
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: (ADUZ) 1.312 INCHES NOMINAL 2ND END
CONNECTION STYLE: (AHNC) RAISED SWIVEL 2ND END
CONNECTION TYPE: (AWLS) RAISED FACE FLANGE 2ND END
CONNECTION STYLE: (AHNC) FLARE 1ST END
CONNECTION TYPE: (AWLS) THREADED INTERNAL TUBE 1ST END
CROSS-SECTIONAL SHAPE STYLE: (AAGR) ROUND
FLANGE LENGTH: (AFQN) 1.750 INCHES NOMINAL 2ND END
FLANGE STYLE: (CTCJ) RECTANGULAR (INCLUDES SQUARE) 2ND END
FLANGE THICKNESS: (ABKU) 0.297 INCHES NOMINAL 2ND END
FLANGE WIDTH: (AGFF) 1.750 INCHES NOMINAL 2ND END
HYDROSTATIC TEST PRESSURE: (CRDW) 600.0 POUNDS PER SQUARE INCH
INSIDE DIAMETER: (AARX) 0.937 INCHES NOMINAL
INSIDE SURFACE CONDITION: (CRWL) CONVOLUTED
LAYER COMPOSITION AND LOCATION: (CQCS) OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
OUTER COVERING ENVIRONMENTAL PROTECTION: (CRJM) CORROSION RESISTANT
OUTSIDE DIAMETER: (ABKV) 1.312 INCHES NOMINAL
MAXIMUM OPERATING PRESSURE: (CQGM) 300.0 POUNDS PER SQUARE INCH
MEASURING METHOD AND LENGTH: (CRXX) 37.750 INCHES MINIMUM WORKING AND 38.250 INCHES MAXIMUM WORKING
MINIMUM INSIDE BENDING RADIUS: (ACKH) 5.000 INCHES
NOMINAL THREAD SIZE: (CQJX) 1.312 INCHES 1ST END
RAISED FACE DIAMETER: (AJEE) 1.510 INCHES NOMINAL 2ND END
RAISED FACE HEIGHT: (AJED) 0.015 INCHES NOMINAL 2ND END
SEAT ANGLE: (CQRB) 37.0 DEGREES 1ST END
SPECIAL FEATURES: (FEAT) P/N MS20756-20D FLANGE IS LOCATED1.812 IN. FROM 1ST END 1.330 IN. C FLANGE TO C HOSE
SUPPLEMENTARY FEATURES: (SUPP) THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 00624 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
TEMP RATING: (ABJH) -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE
THREAD CLASS: (AAJD) 3B 1ST END
THREAD DIRECTION: (AAJF) RIGHT-HAND 1ST END
THREAD SERIES DESIGNATOR: (THSD) UNJ 1ST END
THREAD QUANTITY PER INCH: (CMLP) 12 1ST END