NSN 6635-00-967-0500, 6635009670500
Cancelled -> Replaced by 6640008773157

Federal Supply Classification: FSC 6635 - Physical Properties Testing and Inspection
National Item Identification Number: NIIN 009670500
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (Y) Information is in the Hazardous Materials Information Resource System (HMIRS).

Availability: Readily Available Qualified Suppliers: We have 12 qualified suppliers

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DLMS^® Summary

National Stock Number 6635-00-967-0500

National Stock Number (NSN) 6635-00-967-0500, or NIIN 009670500, (filter unit,micropo) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NSN replaces 1 stock number, 6640008773157.

There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 12 sources of supply.

This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 345 contracts issued for this part number, with 474 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 15 different suppliers. The last contract numbers awarded were: SPE2DH25V3088, SPE2DH25P0899, SPE2DH25P0783, SPE2DH25V2229, SPE2DH25V2067. The total value of the awarded contracts has been US$ 1,799,167.13.

This NSN is very common among different weapons systems, belonging to 35 different platforms.

This national stock number is in high demand. 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 Oct 22, 2010, 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) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6635009670500 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

SPECIAL FEATURES: (FEAT) CELLULOSE MATERIAL; AEROSOL AND HYDROSOL UNIT TYPE; 47.0 MM O/A DIA; GRID MARKS NOT INCLUDED; 9.6 SQ CM FILTERING AREA; 0.65 ABSOLUTE FILTRATION RATING IN MICRONS; TIN FILTERING MATERIAL; WHITE ABSORBANT PAD; WHITE COLOR; RIM MOUNTED FEATURE NOT INCLUDED; 100 PER BOX