1.02 SPEC 38KM252401_00_A01.pdf

This is a Job Specification for auxiliary seawater piping work on the USS CHIEF (MCM-14) naval vessel. The contract is identified as ICN 38KM252401 with an anticipated award date of July 5, 2026, and a production completion date of September 3, 2026. The period of performance runs from August 4, 2026 to October 31, 2026. The work is prepared by M. Noguchi, approved by S. Murakami, and concurred by T. Takamasu, with Ship Force oversight listed as SIMMS R./CHENG. The preparing activity is identified as SASEBO, and the specification explicitly requires the use of non-magnetic materials for all diving operations.

The scope of work encompasses hydroblasting and mechanical cleaning of auxiliary seawater (ASW) piping ranging from 3/4 inch to 8 inch IPS with union connections located in the Auxiliary Machinery Room (3-41-0-E). Key requirements include conducting a pre-brief meeting to confirm understanding among contractor, government, and ship's force; performing hydroblasting operations at a rate of one foot per minute per lance and nozzle; removing and reinstalling floor deck plates and gratings using non-magnetic fasteners; isolating affected equipment during the process; achieving Level III cleanliness per Section 50532 of the General Specifications for Overhaul of Surface Ships (GSO); operating hydroblast equipment with at least four qualified contractor operators; conducting operating pressure tests with allowable leakage of none (S130); and submitting a legible condition report to the supervisor upon completion. The specification references multiple technical drawings and procedures, includes a comprehensive material list of over 70 line items consisting primarily of rings, gaskets, fasteners, valves, and piping components, and notes that government-furnished water jet equipment must be returned in its original condition following work completion. Radio communication must be maintained among pier-side personnel, blast machine operator, nozzleman, and quality assurance watch-stander throughout operations.