The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the manufacture of a Tube Assembly, classified under the NAICS code 333998. This procurement is a sole source requirement for new spare parts, necessitating Government Source Approval prior to award, as the Government lacks sufficient data to contract with other sources. The selected contractor must adhere to stringent quality assurance standards and maintain compliance with ISO9001-2000/AS9100B quality systems throughout the contract duration. Proposals must be submitted by August 1, 2025, and interested parties should direct inquiries to Natalie Kilkenny at natalie.a.kilkenny.civ@us.navy.mil or by phone at 215-697-3951.