From the notice

DLA Weapons Support Philadelphia intends to issue a solicitation for a Long Term/ Sole Source contract which will include multiple National Stock Numbers (NSNs) / Federal Stock Classes (FSCs) to support multiple Weapons Systems including the F/A-18 A/D, E-2/C-2, P-8, and C-130 platforms. A total of 13 NSNs are targeted for this contract effort. The proposed action is intended to be awarded on a sole source basis with various contracts issued to Cage 73030 and 99551, as supported by a Class J&A under the authority of 10 USC 2304 (c)(l) as implemented by the Federal Acquisition Regulation (FAR) Section 6.103-1. The proposed Sole Source contracts will be issued to Collins Aerospace affiliated CAGEs (including but not limited to) 73030 and 99551. See Attachment for list of NSNs