National Stock Number
4820-99-300-2435
National Stock Number (NSN) 4820-99-300-2435, or NIIN 993002435, (guide,valve stem) has an unknown assigned date. This NSN replaces 1 stock number, 2040011204502.
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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jun 19, 2012. There have been 4 contracts issued for this part number, with 4 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M012V3855, SPM7M012V3705, SPM7M012V2544, SPM7M511V4530. The total value of the awarded contracts has been US$ 10,354.85.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 32562. [A REPLACEABLE CYLINDRICAL ITEM DESIGNED TO PROVIDE WEAR SURFACE AND MAINTAIN ALIGNMENT OF A RECIPROCATING VALVE STEM AND THE LIKE, IT MAY HAVE A FLANGE(S) AND/OR GROOVES.].
This information was last updated on Feb 06, 2026.