This opportunity is a total small business set-aside for the manufacture and supply of a check valve (VALVE,CHECK), with award based on Lowest Price Technically Acceptable (LPTA) criteria. Offerors must be authorized distributors of the original manufacturer and submit proof of authorization with their quote; quotes must remain valid for at least 90 days. The item must be marked per MIL-STD-130, must be free of asbestos, and packaging must comply with MIL-STD-2073. Inspection and acceptance will be at source, and invoices/receiving reports must be submitted electronically via PIEE-WAWF. No drawings or technical data are available, and changes to production facilities require Contracting Officer approval and a $250 administrative fee.