NSN 6X-4810-LWM043179, TDP VER 005, QTY 27 EA, DELIVERY FOB ORIGIN. NAVSUP Weapon Systems Support intends to solicit, on a sole source basis, spare replenishment from Cometto SPA (A5383) for the procurement of 27 EA Valve, Relay (P/N# C188.0146.00). This part requires engineering source approval by the design control activity in order to maintain the quality of the part. Existing unique design capability, engineering skills, and manufacturing knowledge by the qualified source(s) require acquisition of the part from the approved source(s). The approved source(s) retain data rights, manufacturing knowledge, or technical data that are not economically available to the Government, and the data or knowledge is essential to maintaining the quality of the part. An alternate source must qualify in accordance with the design control activity's The qualification procedures must be approved by the Government engineering activity having jurisdiction over the part in the intended application. If one source is approved, AMCs 3, 4, or 5 are valid. If at least two sources are approved or if the data is adequate for an alternate source to qualify in accordance with the design control activity's procedures, AMCs 1 or 2 are valid. This notice of intent is not a request for competitive quotes and the proposed/contract action is for supplies or services for which the Government intends to negotiate with only one source. Interested persons may identify their interest and capability to respond to the requirement or submit quotes. Quotes received prior to the award date will be considered by the Government. A determination Government not to compete this proposed contract based upon responses to this notice is solely within the discretion of The Government Information received will normally be considered solely for the purpose of determining whether to conduct a competitive procurement.