The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of new manufacture spare parts, specifically a coupling shaft flex. This requirement is classified as a sole source procurement, indicating that the government does not possess sufficient data to contract with any source other than the current supplier, necessitating Government Source Approval prior to award. The items are critical for aircraft ground servicing equipment, and interested vendors must submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure to be considered. For inquiries, potential bidders can contact Danielle Junod at danielle.m.junod.civ@us.navy.mil or by telephone at 215-697-1138. Proposals must remain valid for a minimum of 120 days following submission.