Seat, valve, quantity: 139

The Naval Supply Systems Command is seeking quotations for 139 ball valve seats (NSN 1HM 4820-01-387-8171) fabricated from MC903 Type 6 cast nylon material in accordance with Electric Boat Division Specification 2000 and Newport News Drawing 2285-298. Contractors must comply with ISO-9001 quality standards and MIL-STD-792 permanent marking requirements, and must submit comprehensive material certification test reports and objective quality evidence prior to shipment. The evaluation will prioritize past performance as the primary factor, followed by price considerations. Quotations must be submitted by June 1, 2026, with the solicitation having been posted on April 15, 2026. Critical certification and compliance documentation must be submitted 20 days prior to the scheduled delivery date.

This is a small business set-aside requiring delivery to Portsmouth Naval Shipyard within 365 days of contract award, with inspection and acceptance occurring at the contractor's plant under FOB destination terms. The requirement includes quantitative chemical and mechanical analysis for each heat, lot, and batch, along with extensive testing protocols covering melting point, tensile impact, yield stress, compressive strength, water absorption, and hardness specifications. The procurement is certified as DO-rated for national defense use under the Defense Priorities and Allocations System (DPAS). The primary point of contact is N. Ventura at (929) 602-9222. No specific award value is stated in the solicitation materials, though the 139-unit quantity and specialized manufacturing requirements suggest a moderate contract value.