NAVSUP WSS seeks a firm-price buy of COUPLING,SHAFT,FLEX manufactured to CAGE reference numbers 59747 MS1050077 and 7CDH3 MS1050077N, with marking per MIL-STD-130 and packaging per the schedule/MIL-STD-2073. The requirement is a total small business set-aside, FOB Origin, with Government source inspection. Non-manufacturers must provide OEM authorization as authorized distributors, and offerors must verify nomenclature, part number, and NSN. The Government intends to include an option for increased quantity at the awarded unit price, exercisable within 365 days from award, and accelerated delivery is encouraged. Contractors must retain inspection records for 365 calendar days after final delivery, and design/material/part-number substitutions require Contracting Officer approval except for Code 1 part-number-only changes.