National Stock Number
5330-01-653-0228
National Stock Number (NSN) 5330-01-653-0228, or NIIN 016530228, (seal ring,metal) was assigned March 10, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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 Nov 04, 2016, 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 is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 21205. [A CIRCULAR SHAPED ITEM DESIGNED TO BE INSTALLED IN A SPECIALLY PREPARED GROOVE OR COUNTERBORE TO PROVIDE A LOW PRESSURE SEAL. IT MAY BE SUPPLIED IN VARIOUS CROSS-SECTIONAL SHAPES. IT MAY BE SOLID OR CUT THROUGH TO ALLOW FOR INSTALLATION AND FITTING. EXCLUDES ITEMS WHOSE PRIMARY FUNCTION IS TO PROVIDE SEALING, WIPING, OR WEARING SURFACE CAPABILITIES FOR PISTON CONFIGURATIONS. SEE ALSO RING,PISTON AND RING,WIPER.]. Item has not been reviewed for Flight Safety Critical Aircraft Part (FSACP), Critical Safety Item (CSI), or Critical Application Item (CAI) purposes by an approved engineering authority. 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 5330016530228 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 Apr 01, 2025.