National Stock Number (NSN) 4730-01-273-3671, or NIIN 012733671, (clamp,hose) was assigned February 24, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 4730005858394, 4730011795169, 4730004006687, 4730001190491.
There are 37 manufacturer part numbers associated with this NSN. 21 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 36 suppliers. Today, 23 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 14 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 15 contracts issued for this part number, with 90 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 11 different suppliers. The last contract numbers awarded were: SPE7M822P4343, SPE7M822P4224, SPE7M822P4224, SPE7M822P4224, SPE7M121V1643. The total value of the awarded contracts has been US$ 25,103.35.
This NSN is very common among different weapons systems, belonging to 58 different platforms.
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 Nov 06, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (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) 13566. [A CLAMP IN WHICH THE BODY (BAND OR WIRE) COMPLETELY ENCIRCLES AN ITEM AND DISTRIBUTES A RELATIVELY EVEN AMOUNT OF PRESSURE THROUGHOUT THE ENTIRE 360 DEGREES (6.282 RADIANS) OF THE PERIPHERY OF THE ITEM TO BE COMPRESSED. ITS COMPRESSION QUALITY IS DEPENDENT UPON AN INTEGRAL SCREW MECHANISM, (SCREW, BOLT SPRING COMPRESSION AND THE LIKE MECHANICAL FASTENERS), OR IT MAY BE APPLIED BY A DEVICE NOT INTEGRAL WITH THE CLAMP ITSELF. IT IS SPECIFICALLY DESIGNED TO PREVENT LEAKAGE BETWEEN A HOSE AND ITS ATTACHING CONNECTION(S) WHEN THE BODY OF THE CLAMP IS ROUND OR CIRCULAR. FOR SQUARE, RECTANGULAR, OR IRREGULARLY SHAPED ITEMS, SEE CLAMP, HOSE, SPECIAL-SHAPED. EXCLUDES:CLAMP, ELECTRICAL; CLAMP, LOOP; CLAMP, FIRE HOSE, SHUTOFF; FERRULE (AS MODIFIED); AND HAND SCREW.]. 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 4730012733671 does not contain precious metals.
This NSN is associated to Schedule B 7609000000: aluminum tube or pipe fittings (couplings,elbows sleeves). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Aug 01, 2025.