This solicitation is for the repair of four SEAL ASSEMBLY, MAIN units (NSN 7HH 2010 015157709) under a Firm Fixed Price contract, with award to be made under a Basic Ordering Agreement. The vendor has 90 days after receipt of the carcasses to complete teardown and evaluation, then submit a Firm Fixed Price quote for the full repair effort. Repaired items must comply with critical interfacing features per the EB Product Compliance Report and Wartsila drawing, with 100% inspection required for critical holes and marking per MIL-STD-130. The requirement is pursuant to Emergency Acquisition Flexibilities and will be DO-rated for national defense under the Defense Priorities and Allocations System. The material must be mercury-free, and all inspection records must be kept for 365 days after final delivery.