1.02 PK4_38NBA51217_00_A01.pdf

This is a Job Specification document for naval maintenance work on ship LCU-1651 (NBU-7) under ICN 38NBA51217. The work involves inspection and replacement of overflow and natural vent piping systems, with a production completion date of August 29, 2026 and a final completion date of September 30, 2026. The anticipated award date is May 1, 2026, with preparation activities managed by SASEBO.

The specification requires comprehensive tank and piping maintenance in the AFT Engine Room, including cleaning of one waste oil tank (113-gallon capacity) and visual inspection of 120 feet of overflow and natural vent piping to identify deteriorated sections. Work includes removal and installation of corroded piping, fabrication of backing rings, and air flow testing to verify zero leakage and unobstructed flow. All affected piping must be cleaned to a gas/oil-free condition per 29 CFR 1915 Subpart B, with marine chemist certification required. The specification identifies multiple tank vent piping systems across both starboard and port sides serving seawater ballast tanks, equipment storage, flammable liquid storeroom, diesel oil tank, and other compartments. Government-furnished materials include extensive lists of pipes (ranging from 1 to 6 inches IPS), tank vent valves, elbows, couplings, welding electrodes, brazing alloys, and fasteners. Tank and cofferdam cleaning requirements mandate removal and proper disposal of waste liquids through government-provided conveyance, with contractor responsibility for spill containment, hose inspection, and leak monitoring. Personnel accountability and manhole documentation are required throughout the work period.