The procurement is for NSN 4140015516155, specifically 20 units of a centrifugal fan assembly, with delivery to DLA Distribution San Diego required within 165 days after order placement. An approved source is identified, but specifications, plans, and drawings are not available. The solicitation is a request for quote (RFQ) available only via the linked notice, with no hard copies. All responsible sources are encouraged to submit quotes electronically for consideration. No budget amount is specified.