The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for a spares requirement under the title "99--CLOSURE." This procurement involves the acquisition of four units, with specific contractual changes recently incorporated into the solicitation, including the addition of two product designations and an increase in total quantity. The items sought are categorized under the NAICS code 333998, which pertains to miscellaneous general-purpose machinery manufacturing, and are critical for maintaining operational readiness within the Navy. Interested vendors should direct inquiries to Taylor M. Weidman via email at TAYLOR.M.WEIDMAN2.CIV@US.NAVY.MIL, as all terms and conditions of the solicitation remain unchanged.