NUT,PLAIN,ROUND

This solicitation amends an existing purchase order to reduce the quantity of two specific Navy‑identified parts (NIINs 013397780 and 013397781) to two units each and extends the closing date. The contract calls for stem retaining nuts that must conform to NAVSEA drawing 6602371 and be fabricated from MIL‑DTL‑24252 material (Composition 1, Condition A). The items are designated Special Emphasis (Level I) material, requiring strict quality assurance, traceability, and certification procedures, including ISO‑9001, ISO‑10012, and MIL‑I‑45208 compliance, mercury‑free construction, and extensive inspection requirements (thread inspection, O‑ring groove inspection, and material certification). Delivery is to Portsmouth Naval Shipyard (DODAAC N50286) with a final delivery schedule of up to 365 days after contract effective date.