The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of six units of the Switching Unit, Audi (NSN 0R-5821-017169518-P8, REF NR 1194100-100). This procurement is critical as the design of the part is currently unstable, necessitating major changes due to low process yield and marginal performance, which may render the existing configuration obsolete. The item is flight critical, requiring government source approval prior to contract award, and only previously approved sources will be solicited. Interested parties must submit their proposals along with the necessary source approval documentation to Patrick Horan at patrick.j.horan1@navy.mil within 45 days of this notice, as the government intends to negotiate with only one source under FAR 6.302-1.