National Stock Number
3040-01-520-9552
National Stock Number (NSN) 3040-01-520-9552, or NIIN 015209552, (adapter,spline) was assigned June 3, 2004 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 04, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The design of this part is unstable. Engineering, manufacturing, or performance characteristics indicate that the required design objectives have not been achieved. Major changes are contemplated because the part has a low process yield or has demonstrated marginal performance during tests or service use. These changes will render the present part obsolete and unusable in its present configuration. Limited acquisition from the present source is anticipated pending configuration changes. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 48833. [AN ITEM FOR CONNECTING TWO SETS OF GROOVES/KEYS (AS OF DIFFERENT DIAMETERS), CHANGING GROOVE/KEY SIZE AND/OR SPACING, OR FOR CHANGING GROOVE/KEY CONFIGURATION FOR USES NOT ORIGINALLY INTENDED.]. 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 3040015209552 does not contain precious metals.
This NSN is associated to Schedule B 8207907570: interchangeable tools for handtools or for machine tools, nesoi, and base metal parts thereof. The Schedule B End Use is listed as photo, service industry machinery. NAICS classification category 333515: cutting tool and machine tool accessory manufacturing.
This information was last updated on Jul 01, 2025.