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

Recommendation and Determination to Solicit from One Source or Brand Name

This document recommends negotiating with Acme Cryogenics for the acquisition of a Liquid Methane/Liquid Natural Gas (LNG) Vaporizer. The effort is determined to be reasonably available from only one source/manufacturer, making competition impractical.

• Acquisition of a Liquid Methane/Liquid Natural Gas (LNG) Vaporizer, specifically Model A64SS-18.6-UHP-EP-LNG.

• The vaporizer is for a new design of a 15K PSI liquid methane/LNG storage, pumping, offloading, and vaporization system.

• The estimated total cost of the effort is redacted.

• The estimated period of performance or lead-time for delivery is 10 weeks ARO (After Receipt of Order).

Not applicable, as this is a sole source determination.

This is a sole source acquisition, with Acme Cryogenics identified as the only acceptable source.

• Acme Cryogenics is the sole supplier of the specified model.
• Only OEM equipment and parts are acceptable from the manufacturer; no resellers are permitted.
• No other vendor can supply these parts within the contractual local territory to Stennis Space Center.
• Using other brands would result in delays, compatibility research, and potential cost increases due to redesign.
• Commonality of parts and service repairs with existing ACME Cryogenic Vaporizers at Stennis Space Center promotes efficiencies.

Statement of Work (SOW) / Performance Work Statement (PWS)

To purchase and deliver an ambient vaporizer from authorized vendors/OEMs within the Stennis Space Center's contractual local territory.

• Item: 1 x Model A64SS-18.6-UHP-EP-LNG Ambient Vaporizer.

• Flow Rate: 56,663 SCFH for 8 hours at sea level.

• Fluid: Liquid Methane.

• Outlet Gas Temperature: Within 20°F of prevailing ambient temperature.

• MAWP: 15,000 psig.

• Operating Pressure: 10,000 psig.

• Pressure Drop: 50 to 65 psi at full rated flow and 10,000 psig.

• Fluid Passages: 304 electro polished stainless steel.

• Inlet/Outlet Connection: 1" ASME Flange.

• Surface Area: Internal 125.2 sq. ft., External 5,952 sq. ft.

• Fin Spacing: 9.25" center to center - 1.25" gap (for Oxygen Service per CP010102 rev 5).

• Approximate Dimensions: 75" Wide x 75" Deep x 250" Tall.

• Approximate Clean Weight: 6,451 lbs.

• Approximate Iced Weight: 37,669 lbs.

• Location: Stennis Space Center MS 39529.

• Timeline: 36 weeks delivery time.

Solicitation / RFP / RFQ

NASA/NSSC has a requirement for an Ambient Vaporizer/Model A64SS-18.6-UHP-EP-LNG/1/. The government intends to issue a sole source contract under FAR 12.102(a), as VENDOR NAME has been determined to be the sole provider. The procurement will be handled by NASA/NSSC, with performance located at NASA/ Stennis Space Center (SSC). Commercial items and services will be acquired per FAR Part 12.

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

• Sole source contract anticipated.

• Performance at NASA/ Stennis Space Center (SSC).

• Interested organizations may submit capabilities and qualifications in writing.

• Deadline for submissions: April 29, 2026, 7 a.m. Central Standard Time.

• Submissions will be evaluated to determine if the procurement should be conducted on a competitive basis.

• The determination to compete or not compete is at the government's discretion.

• This notice is for determining potential competition; no specific set-aside is mentioned.

• NAICS Code: 332999.

• Oral communications are not acceptable.

• NASA FAR Supplement Clause 1852.215-84, Ombudsman, is applicable. A link to the Center Ombudsman listing is provided.

• Primary Point of Contact: Shanna Patterson, Procurement Specialist (Shanna.L.Patterson@nasa.gov).