Ambient Vaporizer/Model A64SS-18.6-UHP-EP-LNG/1/

This is a sole-source procurement under FAR 12.102(a) for a single Ambient Vaporizer, Model A64SS-18.6-UHP-EP-LNG/1/, supplied exclusively by ACME Cryogenics to meet the unique technical and integration requirements of NASA’s cryogenic systems at Stennis Space Center, Mississippi. The vaporizer is designed for liquid methane service with a capacity of 56,663 SCFH, a maximum allowable working pressure of 15,000 psig, and an outlet temperature within 20°F of ambient, constructed with 304 electro-polished stainless steel passages and ASME flanges. Delivery is required within 36 weeks to Stennis Space Center, with no substitution of equipment permitted due to proprietary design and critical compatibility with existing infrastructure. The acquisition follows commercial item procedures under FAR Part 12, with no competitive evaluation or pricing data disclosed, and the contract is implied to be firm-fixed-price. Special requirements include compliance with NASA’s CP010102 Rev 5 cleaning standard for oxygen service, and the inclusion of the NASA FAR Supplement clause 1852.215-84 for ombudsman dispute resolution. The sole-source justification is rooted in the item’s uniqueness and lack of viable alternatives, with no alternative vendor capable of meeting the exact performance, material, or integration specifications. No formal attachments, packaging, marking, or invoicing instructions are provided beyond the model number and cleaning requirement, and the contracting officer’s representative is not explicitly designated, with Shanna Patterson listed as the primary point of contact for submissions, which must be emailed to her by April 29, 2026, at 7:00 a.m. CST. The total contract value remains undisclosed, and no accounting, appropriation, or payment details are included in the documentation.