The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of spindle assemblies. This opportunity involves a sole source requirement for a total of eight units, necessitating Government Source Approval prior to award, as the Government lacks sufficient data to contract with other sources. The spindle assemblies are critical components used in helicopter rotor blades and drive mechanisms, highlighting their importance in maintaining operational readiness. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, and inquiries can be directed to Danielle Cutrera at Danielle.Cutrera@navy.mil or by telephone at 215-697-6566.