NSN 4720-01-178-0965, 4720011780965
HOSE ASSEMBLY,AIR BREATHING

Federal Supply Classification: FSC 4720 - Hose and Flexible Tubing
National Item Identification Number: NIIN 011780965
Codification Country: United States
Item Name Code: INC 39227
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: We have 3 qualified suppliers

Manufacture or supply this part?
Join our growing community of certified suppliers.

Let Us Know

CALL ABOUT NSN 4720-01-178-0965

Our client representatives are standing by to help fulfill your request.

+1-321-773-5710

REQUEST QUOTE for 4720-01-178-0965

Have a list that needs to be quoted? Upload it here.

Upload a List

DLMS^® Summary

National Stock Number 4720-01-178-0965

National Stock Number (NSN) 4720-01-178-0965, or NIIN 011780965, (hose assembly,air breathing) was assigned May 2, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. 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 7 contracts issued for this part number, with 7 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M024V2338, SPE7M121V8174, SPE7M417V0341, SPE7M415V2072, SPM7M412V5019. The total value of the awarded contracts has been US$ 46,071.24.

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 02, 2005, 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) 39227. [A LENGTH OF HOSE, AIR BREATHING WITH COUPLINGS ON ONE OR BOTH ENDS AND/OR A COMMUNICATION CABLE. EXCLUDES:ITEMS WHICH INCLUDE A BRANCH HOSE OR FORK HOSES; WIRING FOR FACE MASK HEATER; VENT AND PRESSURE DUCTS FOR AN ANTI-G-SUIT; HOSE ASSEMBLY, NONMETALLIC.]. 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 4720011780965 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

III MATERIAL: (MATT) STEEL 2ND END COUPLING
END OVERALL LENGTH: (AGQM) 0.500 INCHES NOMINAL SECOND END0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM BOTH ENDS
COUPLING STYLE: (CXMG) OXYGEN HOSE CLAMP SECOND END
MATERIAL: (MATT) STEEL 2ND END COUPLING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) QQ-P-416,TYPE 1,CLASS 1 FED SPEC 1ST TREATMENT RESPONSE 1ST END COUPLING OR QQ-Z-325,TYPE 1,CLASS 2 FED SPEC 2ND TREATMENT RESPONSE 1ST END COUPLING
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-B-626,COMP 22, 1/2H FED SPEC SINGLE MATERIAL RESPONSE 1ST END COUPLING
FEATURES PROVIDED: (CBBL) OZONE RESISTANT
III MATERIAL: (MATT) COPPER ALLOY 1ST END COUPLING
END OVERALL LENGTH: (AGQM) 1.562 INCHES NOMINAL FIRST END
MATERIAL: (MATT) COPPER ALLOY 1ST END COUPLING
MATERIAL: (MATT) COTTON AND COPPER ALLOY 2ND END COUPLINGFIBERGLASS 1ST PLY
SURFACE TREATMENT: (SFTT) CADMIUM 1ST END COUPLING OR ZINC 1ST END COUPLING
CONNECTION TYPE: (AWLS) COUPLING FIRST END
END INSIDE DIAMETER: (CPYG) 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM BOTH ENDS
CONNECTION TYPE: (AWLS) COUPLING SECOND END
CONNECTION TYPE: (AWLS) SOFT FIRST END
CONNECTION STYLE: (AHNC) ROUND BOTH ENDS
COUPLING STYLE: (CXMG) CONNECTOR, OXYGEN HOSE TO REGULATOR W/ CLIP (NOTE: APPLICABLE TO HOSE ASSEMBLY, AIR BREATHING ONLY.) SECOND END
COUPLING STYLE: (CXMG) CONNECTOR, OXYGEN HOSE TO REGULATOR (NOTE: APPLICABLE TO HOSE ASSEMBLY, AIR BREATHING ONLY.) FIRST END
CROSS-SECTIONAL SHAPE STYLE: (AAGR) ROUND
END OVERALL LENGTH: (AGQM) 0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM BOTH ENDS
FEATURES PROVIDED: (CBBL) OZONE RESISTANT AND RESTRAINT CORD
INSIDE DIAMETER: (AARX) 0.750 INCHES NOMINAL BOTH ENDS
MATERIAL: (MATT) COTTON AND FIBERGLASS 1ST PLY
MEASURING METHOD AND LENGTH: (CRXX) 84.000 INCHES NOMINAL OVERALL
OUTSIDE DIAMETER: (ABKV) 1.094 INCHES MINIMUM AND 1.250 INCHES MAXIMUM BOTH ENDS
SPECIAL FEATURES: (FEAT) FLAMMABLE COMPRESSED AIR; FIRST END INSIDE DIA.:0.963 IN. MIN.,0.973 IN. MAX.; END SIMILARITY:NOT IDENTICAL; SECOND END INSIDE DIA.:0.938 IN. MIN.,1.250 IN. MAX.; INSIDE DIA.:0.750 IN. MIN.,1.250 IN. MAX.; HOSE STYLE:HELICALLY WOUND CONTINUOUS WIRE SUPPORTED,STYLE NO. 4 FROM OLD FIIG A22900; SCUFF STRIP:NOT INCLUDED; HOSE MATERIAL:TETRAFLUOROETHLYLENE PLASTIC AND STEEL WIRE AND TETRAFLUOROETHYLENE PLASTIC; COMMUNICATION CABLE AND RESTRAINT CORD:NOT INCLUDED; SECOND END COUPLING SURFACE TREATMENT:ANY ACCEPTABLE
STYLE DESIGNATOR: (STYL) HELICALLY WOUND CONTINOUS WIRE SUPPORTED
WALL THICKNESS: (AAGT) 0.250 INCHES NOMINAL