Procurement DISK ASSEMBLY, VALVE 65 EA, NSN 1HM 4820-01-122-8255 L1

The Navy is issuing a sole‑source procurement for 65 disk assemblies for a valve (NSN 1HM 4820‑01‑122‑8255 L1). The requirement is classified as a Level 1 acquisition, meaning the government will purchase directly from the original equipment manufacturer (VACCO Industries) because data and rights are not owned and reverse‑engineering is uneconomical. Technical specifications are referenced in sections C, D, E, and accompanying attachments. • Quantity: 65 each (EA) • Item: Disk Assembly, Valve (NSN 1HM 4820‑01‑122‑8255) • Procurement Method: Sole‑source, Level 1 under FAR 6.103‑1 (AMC 3R) • Intended Vendor: VACCO Industries (sole source) • Delivery: As‑needed per Navy technical requirements (no schedule provided)