Statement of Work.pdf

STATEMENT OF WORK

1. Objective/Requirements

2. The vendor will support all necessary steps to complete the C-seal fabrication effort for the DAVINCI+ program. The various C-Seals that need to be in the Parker / Hannifin, Inc. Procurement Document. The following is the list of C-Seals to be ordered:

Item Description Quantity Notes

1 NH‐761542 ( Regular C‐Seal ) 25 NH‐761542 Requires PG12 NREC 1‐708LUD2 D

2 PG12 NREC 1‐708LUD2 D 1 Tooling Charge for NH‐761542

3 NH‐44891 ( Spring Energized C‐Seal ) 5 NH‐44891 Requires PG12 NREC 1‐708LUD2 B

4 PG12 NREC 1‐708LUD2 B 1 Tooling Charge for NH‐44891

5 NH‐761543 ( Regular C‐Seal ) 10

6 NH‐44892 ( Spring Energized C‐Seal ) 5 NH‐44892 Requires PG12 NREC 1‐708LUD2 C

7 PG12 NREC 1‐708LUD2 C 1 Tooling Charge for NH‐44892

8 NH‐761554 ( Regular C‐Seal ) 25 NH‐761554 Requires PG12 NREC 1‐708LUD2 A

9 PG12 NREC 1‐708LUD2 A 1 Tooling Charge for NH‐761554

10 NH‐761544 ( Regular C‐Seal ) 10

11 NH‐44889 ( Spring Energized C‐Seal ) 10

12 NH‐761545 ( Regular C‐Seal ) 10

13 NH‐44890 ( Spring Energized C‐Seal ) 10

The DAVINCI+ Descent Sphere (DS) will be jettisoned from the orbiting spacecraft into and through the Venusian atmosphere. In order to obtain the science and environmental data ( the objective of the mission ), the DS has to maintain an internal pressure of 1 to 3 atmospheres ( approx.. 15 psi to 50 psi ) and a maximum temperature of 60 °C internal to the DS. The environmental conditions on Venus are very challenging, the surface temperature is 460 °C and the surface pressure is 95 atmospheres ( approx.. 1400 psi ).

As the DS is comprised of 3 main C-Seals and 10 science, electrical and environmental penetrations, C-seals provide the “barrier” at these interfaces from the infiltration of the hot gas and high pressures that would destroy all science and environmental sensors within the

DS.

3. Characteristics, Scope, and Specs The C-Seals are manufactured from Inconel material and coated with a silver coating when, the correct pre-load is applied will form a barrier to the Venusian atmosphere.

Without a sealing strategy, i.e. C-Seals, the Venus mission would be impossible.

The C-Seals will be manufactured to withstand 600 °C and 2041 atmospheres (approx.. 30,0000 psi.). This is well and above the requirements stated above. Once we obtain the C-Seals, the DAVINCI+ team can move forward with the requisite testing which will prove the sensor and science instrument viability.

Parker / Hannifin has provided C-Seals for the aerospace industry for over 50 years They are ISO 9001 certified and have provided GSFC C-Seals for the 2016 Half

Scale Probe (HSP) integration and test effort Parker / Hannifin have provided C-Seals to GSFC for the 2017 Two-Piece Port (2-

PP) RF and Electrical Feedtrough Test Effort All above testing efforts were successful

Place of Performance

Fabrication Facility:

Parker Hannifin Corporation Aerospace / Military Engineered Materials Group Composite Sealing Systems Division Advanced Products Business Unit - Metal Seals 33 Defco Park Road North Haven, CT 06473 Fax: 203.234.7233

4. POC and Delivery Destination:

NASA/Goddard Space Flight Center 8800 Greenbelt Road POC provide at award Greenbelt, Md. 20771

5. Period of Performance:

All S-Ceals above shall be delivered to GSFC by 8-16 weeks after receipt of order.