National Stock Number
6635-01-334-1691
National Stock Number (NSN) 6635-01-334-1691, or NIIN 013341691, (analyzer,particle size) was assigned February 17, 1991 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 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 assigned to Item Name Code (INC) 19248. [A DEVICE DESIGNED TO DETERMINE THE SIZE DISTRIBUTION OF POWDERED MATERIALS BELOW THE 200 MESH SIEVE RANGE. THE METHOD EMPLOYED IS AN OSCILLATING U-SHAPED TUBE AND ENCASED AIR JET TO FURNISH THE AIR REQUIRED FOR SEPARATION. IT IS REGULATED IN ACCORDANCE WITH STOKES LAW OF FALL FOR MICROSCOPIC SIZE PARTICLES.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6635013341691 contains an unknown precious metal.
This NSN is associated to Schedule B 9027803500: physical analysis instruments and apparatus, except using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Aug 01, 2025.