This Navy procurement requires Government source approval prior to award; non-approved offerors must submit the required NAVSUP WSS source-approval information with their proposal, and incomplete submissions will not be considered. If source-approval evaluation cannot be completed in time or approval would prevent meeting Government requirements, award may proceed based on fleet support needs. The clauses include a 12-month warranty for noncomplex supplies, with defects to be reported within 60 days after discovery. Early and incremental deliveries are accepted and preferred, and Philadelphia is referenced in the contract clause information.