This solicitation is issued under EAF Authority, formerly SEPA. Critical Safety Items and Contractor Business Systems DFARS clauses are incorporated by reference as applicable. Drawings are not available, and offerors must provide newly manufactured spares only; refurbished, remanufactured, or repaired material is unacceptable. Offers from non-government-approved sources will be technically unacceptable, and distributors of approved sources must submit an authorized distributor letter on source letterhead to the buyer point of contact via email.