NAVSUP Weapon Systems Support Philadelphia intends to sole-source the procurement of two rotary wing blades (NSN: 7R1615011589679, P/N: 70150-29100-041) from Sikorsky Aircraft Corporation, the original equipment manufacturer and only known source due to the government's lack of data or rights to purchase from other suppliers. All responsible sources may submit a capability statement, proposal, or quotation for consideration, but any firm not already approved must submit a Source Approval Request (SAR), though the procurement will not be delayed for SAR approval. The government will consider all proposals received within 45 days of this synopsis, but this notice is not a request for competitive proposals. No budget amount is specified, and the location for performance of services is not mentioned. This procurement is not a small business set-aside, and the solicitation will be posted electronically via NECO.