National Stock Number
4240-00-056-0005
National Stock Number (NSN) 4240-00-056-0005, or NIIN 000560005, (helmet,welder's) 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, 4240011507899.
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 2 suppliers. 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 6 different weapons systems.
There has been very little demand for this national stock number. 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: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 11102. [A LOOSE-FITTING, SINGLE-APERTURE MASK SUPPORTED ON THE HEAD BY A HEADGEAR OR HEADBAND. IT IS DESIGNED TO PROTECT THE WEARER'S EYES, EARS, NECK, AND HEAD DURING WELDING OPERATIONS. IT MAY BE FURNISHED WITHOUT FILTER GLASS AND COVER GLASS. EXCLUDES:FACESHIELD, INDUSTRIAL.]. 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 4240000560005 contains an unknown precious metal.
This NSN is associated to Schedule B 6506100090: safety headgear, whether or not lined or trimmed, n.e.s.o.i.. The Schedule B End Use is listed as apparel,household goods-nontextile. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Aug 01, 2025.