National Stock Number
5330-01-213-7531
National Stock Number (NSN) 5330-01-213-7531, or NIIN 012137531, (seal ring,metal) was assigned September 26, 2000 in the Federal Logistics Information System (FLIS). NIIN 012137531 was cancelled on February 2, 2001, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5330012135205. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
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.]. 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 5330012137531 does not contain precious metals.
This information was last updated on May 01, 2025.