National Stock Number
2520-00-020-7721
National Stock Number (NSN) 5330-00-020-7721, or NIIN 000207721, (parts kit,seal replacement,mecha) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2520002300119.
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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 34944. [A PARTS KIT CONSISTING OF NUMEROUS ITEMS. THE KIT MAY CONTAIN SEALS, GASKETS, PACKING, AND/OR RETAINERS FOR REPAIRING MECHANICAL EQUIPMENT. EXCLUDES KITS INCLUDING TOOLS, COLLARS, PINS, SLEEVES AND ASSOCIATED HARDWARE. EXCLUDS PARTS KIT (1), SEAL REPLACEMENT, ARTILLERY.]. 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 5330000207721 contains an unknown precious metal.
This NSN is associated to Schedule B 8484200000: mechanical seals. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Jul 01, 2025.