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This statement of work describes requirements for a custom liquid nitrogen cooled shroud. The shroud must have a cylindrical shape with internal dimensions of 20 inches in diameter and 23.5 inches tall. It must be constructed of D-tube aluminum sheet with a large, hinged access door on the right side. The interior surfaces must be coated with black high emittance paint. A cryogenic feedthrough with a 2.75 conflat flange is required for liquid nitrogen supply and return piping. A pair of three-foot long flexlines with matching fittings must also be provided. The period of performance for manufacturing the shroud is 2023. The related federal contract opportunity is a solicitation from NASA seeking proposals for the thermal vacuum system shroud, cryogenic feedthrough, and flexlines by January 2023.

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PR _54607012002______________

STATEMENT OF WORK

1. Objective/Requirements Purchase of custom liquid nitrogen cooled shroud for the code 546 Electrostatic Discharge Facility.

2. Characteristics, Scope, and Specs

1. Cylindrical shroud of 20” diameter x 23.5” tall internal dimensions

a. D-tube on aluminum sheet construction

b. Large access hinged door – hinged right

c. Black high emittance paint in all interior surfaces

d. Flexline(s) connecting main shroud to door

e. ½” VCR fittings

f. 1” tall G10 (or similar) stand-offs separate baseplate from main shroud

g. 12” diameter baseplate with 4x mounting holes (not plumbed for cooling)

h. 11” diameter hole centered in base of shroud with mounting holes aligned with 12” baseplate mentioned in Item g.

i. 6” diameter hole centered in top of shroud

j. 6” diameter hole in the side of shroud opposite door, centered at a point

10” from top of shroud and 8.5” from shroud door hinge

2. Cryogenic Feedthrough

a. 2.75 conflat flange for cryogenic supply and return piping with ½” VCR fittings

3. Flexlines

a. Pair of flexlines with ½” VCR fittings, 3ft long each

3. Place of Performance

Manufacturing Facility

4. Period of Performance

File details come from the government source that posted it. Updated .