The requirement is for manufacture of 63 AY of a filter element, NSN 7HH 4330 014379121 X3, P/N ND8283ITEM1,8, in accordance with the IRPOD/TDP. Delivery is to DLA Distribution New Cumberland, PA, and DLA Distribution San Joaquin, Tracy, CA, with required delivery expressed as a number of days after contract award. The government intends to solicit and negotiate with only one source under FAR 6.302, though interested parties may identify interest/capability or submit proposals; this is not a request for competitive proposals. Offerors must have a valid U.S. security clearance of Confidential or higher because the RFP includes a classified annex, and classified material must be handled under NISPOM. Government source inspection and Reports of Test Inspection are required, and technical documents are available through a password-protected, pre-registration website with no hard copies mailed.