This procurement is for 3 butterfly valves (NSN 4820015306639) to be delivered to the USS GEORGE H W BUSH (CVN 77) within 730 days after order. Approved sources are limited to two specific part numbers from manufacturer 35795. The solicitation is an RFQ available electronically; no hard copies or specifications are provided. All responsible sources may submit a timely quote electronically for consideration. No budget amount has been specified in this notice.