The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure seven units of a pressure altimeter, identified by NSN 7R-6610-017108368-QF and reference number ASI9121-1. This procurement is critical as the item is flight critical, necessitating government source approval prior to contract award, and is intended to support operational readiness. Interested vendors must submit their proposals along with the required source approval documentation within 45 days of this notice, with the understanding that the government may choose to proceed with a sole-source award based on existing approved suppliers. For inquiries, interested parties can contact Jacob A. Tarlini at (215) 697-3563 or via email at jacob.tarlini@navy.mil.