The approved source for NSN 5945-01-605-5483 is Valcor Engineering Corporation (CAGE 96487), part V44778-329-2. The AMC/AMSC code 3R means the government intends to acquire directly from the actual manufacturer for a second or subsequent time and does not own the data or rights needed to source from additional suppliers, with reverse engineering deemed uneconomical. DLA is seeking information on any other sources that may be able to manufacture this item, which can be provided directly to the listed Contract Specialist. Companies wishing to become an approved source may submit a SAR package containing technical data demonstrating they can competently manufacture the product to the same or better quality than the OEM, with the burden of proof on the contractor. DLA Weapons Support – Columbus is the procuring activity, and further SAR process details are available on the referenced DLA web page.