This is a sole source requirement for the repair of two hydraulic pumps, as the government lacks sufficient data to contract with any source other than the current one. The items require Government Source Approval prior to award, and the approval process for a new source is typically too lengthy to delay an award. Offers from unapproved sources must include all information detailed in the NAVSUP WSS Source Approval Brochure submitted with their proposal. The performance location is NAVUP WSS Philadelphia.