NSN 4240-01-084-0921, 4240010840921
CARTRIDGE,FILTER,AIR BREATHING P

Federal Supply Classification: FSC 4240 - Safety and Rescue Equipment
National Item Identification Number: NIIN 010840921
Codification Country: United States
Item Name Code: INC 77777
Criticality: (Y) This item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (P) 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.

Availability: Readily Available Qualified Suppliers: We have 2 qualified suppliers

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DLMS^® Summary

National Stock Number 4240-01-084-0921

National Stock Number (NSN) 4240-01-084-0921, or NIIN 010840921, (cartridge,filter,air breathing p) was assigned October 9, 1979 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those 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, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 924 contracts issued for this part number, with 717 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE8E925V1349, SPE8E925P0546, SPE8E925P0546, SPE8E925P0419, SPE8E925P0419. The total value of the awarded contracts has been US$ 1,305,691.19.

This NSN is very common among different weapons systems, belonging to 59 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 May 02, 2006, 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 but does have other critical feature(s) 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 4240010840921 does not contain precious metals.

This information was last updated on May 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) HBOROSILICATE GLASS MICROFIBERS; CYLINDER WITH 1/8 IN. THK WALLS; DISPOSABLE CARTRIDGE FILTERS; RETENTION EFFICIENCIES - FROM 90% 99.9999% OF 0.6 MICRON PARTICLES; SOLE SOURCE REQUIRED BY STATUTE 6.302
CRITICALITY CODE JUSTIFICATION: (CRTL) TEXT
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) BOROSILICATE GLASS MICROFIBERS; CYLINDER WITH 1/8 IN. THK WALLS; DISPOSABLE CARTRIDGE FILTERS; RETENTION EFFICIENCIES - FROM 90% 99.9999% OF 0.6 MICRON PARTICLES; SOLE SOURCE REQUIRED BY STATUTE 6.302