The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is soliciting proposals for the manufacture of check valves (NSN 4820) as part of a small business set-aside opportunity. The procurement aims to secure new manufacture spare parts that are critical for shipboard systems involved in aircraft launch and recovery, emphasizing the importance of quality and compliance with stringent specifications to prevent failures that could result in serious consequences. Interested vendors must submit their proposals via NECO or email by 2:00 PM EST on June 10, 2025, and are encouraged to include unit prices, lead times, and quote expiration dates, with all submissions remaining valid for a minimum of 120 days. For further inquiries, potential offerors can contact Helen Carmelo at Helen.i.carmelo.civ@us.navy.mil or by telephone at 215-697-1138.