National Stock Number (NSN) 5330-01-166-6542, or NIIN 011666542, (seal,nonmetallic round section) was assigned November 16, 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 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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 5 years.
This NSN is unique to one weapons system.
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 Mar 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. 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) 36873. [AN ITEM FABRICATED FROM NONMETALLIC MATERIAL DESIGNED TO BE USED WHERE THERE IS NO RELATIVE MOTION BETWEEN JOINED PARTS. ITEMS WITH A SOLID CROSS SECTION MUST BE A SINGLE PIECE WHOSE ENDS MAY HAVE BEEN SECURED TOGETHER TO FORM A SPECIFIC SHAPE. IT MAY BE FORMED TO SPECIFIC SHAPE WITH OR WITHOUT JOINTS. IT MAY BE A STRAIGHT ITEM OF A SPECIFIC LENGTH WITH END CUTS OR JOINTS. IT MAY HAVE A SOLID OR TUBULAR CROSS SECTION. EXCEPT FOR MOLDED CORNERS, END CUTS, AND MOUNTING FACILITIES SUCH AS MOUNTING HOLES, SLOTS, PRESS-FIT BUTTONS, OR THE LIKE, THE ITEM MUST BE OF ONE CONTINUOUS ROUND CROSS SECTION. IT MAY HAVE FABRIC, CORD OR METAL REINFORCEMENT. FOR STRAIGHT ITEMS WITH SQUARE END CUTS AND WITHOUT MOUNTING HOLES, SLOTS OR PRESS-FIT BUTTONS SEE RUBBER ROUND SECTION AND TUBING, NONMETALLIC. EXCLUDES:GASKET AND PACKING, PREFORMED.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5330011666542 does not contain precious metals.
This NSN is associated to Schedule B 3926904500: gaskets,washers & other seals. The Schedule B End Use is listed as other industrial supplies. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Aug 01, 2025.