The government seeks a check valve, NSN 4820013188732, quantity 16 EA, delivered to DLA Distribution San Diego within 0310 days after date of order. This is a source-controlled drawing item, and the approved source is 99240 2S6172. An RFQ will be available via the link in the notice, and hard copies are not available. The furnished items must meet the cited drawing requirements, and digitized drawings and military specifications/standards may be retrieved or ordered electronically. All responsible sources may submit quotes electronically, and timely quotes will be considered.