Vintage Lot 3 NOS AIRTEX 97403 Military Gas Generator Fuel Pumps, Choke, + Parts For Sale

Vintage Lot 3 NOS AIRTEX Military Gas Generator Fuel Pumps, Choke, and Misc Parts
Included in the lot:

• Three AIRTEX 97403, 13226E2230-1 Fuel Pumps
• One AIRTEX 97403, 9786E27 10-5057-2 Choke
• Misc Parts inc clear gauge cover, wrench, gaskets
• One manifold cover 97403 13226E0944 (not sure if that's what it is)

I have no mechanical knowledge on this, and can't tell you in what condition they're in. They seem to vary in age. All parts have the same 97403 code which I believe shows they come from the same unit. Apparently a generator.
Please see photos for best idea of detail and condition.
Thanks for your consideration.