Question_11_answered.doc

N32205-17-R-4011

USNS YUKON (T-AO 202)

REQUEST FOR SPECIFICATION CLARIFICATION

SPECIFICATION ITEM NO.: 508A

PARAGRAPH / SECTION NO: 7.3.2

TITLE: MOTOR ROOM DRAINS REPAIRS (VR16-022)

QUESTION:

7.3.2 Contractor shall replace all gaskets, fittings, check valves, unions, flanges and hardware. Contractor shall bend pipe or use long radius sweep elbows on all bends. See attached sketch for guidance. New piping shall have continuous slope down for gravity draining.

Since this item was release after the ship check date, contractor could not see the drain piping specified for replacement and has no way of pricing the “gaskets, fittings, check valves, union, flanges and hardware.” the scaffold requirements, interferences, or pipe bends, etc.

Please provide sketch of piping system to be renewed along with an estimated number of gaskets, fittings, check valves, unions, and flanges, Scaffolding requirements, and any known interferences.

ANSWER:

See attached sketch of system. Contractor will have to use best engineering practice to determine material that will be required to complete the system.

ATTACHMENT J - 8