National Stock Number
4220-01-227-7506
National Stock Number (NSN) 4220-01-227-7506, or NIIN 012277506, (backpack,diver's equipment) was assigned March 7, 1986 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4220012623450.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 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 been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 59 contracts issued for this part number, with 95 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE8EJ25F089F, SPE8EJ25F056B, SPE8EJ25F4513, SPE8EJ25F4514, SPE8EJ25F1004. The total value of the awarded contracts has been US$ 108,913.58.
This NSN is fairly common among different weapons systems, belonging to 11 different platforms.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 2,250. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 25, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 39070. [A GENERALLY FLAT SUPPORT CONSISTING OF SHOULDER STRAPS AND A WAIST STRAP THAT SECURES TO THE DIVER'S BACK. IT IS DESIGNED TO ACCOMODATE ONE OR MORE BAND ASSEMBLY, DIVER'S TANK IN ORDER TO FIX ONE OR MORE DIVING CYLINDERS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220012277506 does not contain precious metals.
This information was last updated on Aug 01, 2025.