NAVSUP WSS is seeking a parts kit for a size 3-inch Combination Hull and Backup Ball Valve—one Ball (find 3) and two mating Seats (find 4)—manufactured to NAVSEA Drawing 801-6404585 and liability ER5959311C5. This is Special Emphasis material for a crucial shipboard system, requiring strict quality assurance, certifications, welding/brazing qualifications, ISO-9001 or MIL-I-45208 quality systems, and Government source inspection. The work includes access to classified drawings (DD Form 254, drawing 6404016 CONFIDENTIAL); classified drawings are not needed to quote, but a facility clearance may be required after award. The procurement is a total small business set-aside, will be a DO-rated DPAS order under Emergency Acquisition Flexibilities, includes a one-year warranty from delivery, requires final material delivery within 365 days after contract effective date, and allows 30 working days after receipt for PNSY review/acceptance of certification CDRLs. The seats must use MD71-GG Mearthane graphite-filled urethane manufactured by Mearthane Products Inc. in Cranston, RI, and the ball is SAE-AMS-6931 or centrifugally cast 6AL-4V ASTM-B367 Grade C-5.

This total small business set-aside procurement seeks a parts kit for a 3-inch combination hull and backup ball valve, consisting of one Ball (Find 3) and two mating Seats (Find 4) per NAVSEA Drawing 801-6404585, including a corrected 1.5-inch spherical radius on the Ball. The Ball material must be SAE-AMS-6931 or centrifugally cast 6AL-4V per ASTM-B367 Grade C-5, while the Seats must use MD71-GG Mearthane graphite-filled urethane manufactured by Mearthane Products Inc., Cranston, RI. The material is designated SPECIAL EMPHASIS for a crucial shipboard system, requiring extensive certification, quality system (ISO-9001 or MIL-I-45208), welding/brazing, configuration control, and Government source inspection. Classified drawings (Confidential 6404016) may require facility clearance if awarded, though access is not required to quote; the contract is anticipated as a DO-rated DPAS order under Emergency Acquisition Flexibilities. Final material delivery is required on or before 365 days after the effective date of the resulting contract, with PNSY review/acceptance of certification data taking 30 working days after receipt.