A long spar, beam or a-frame structure, to support a hoist.
NSN 6130-01-424-9208
NSN 5998-01-388-7286
NSN 5895-00-267-7430
NSN 5985-01-523-7058
NSN 5910-00-717-3963
NSN 5945-00-046-4593
NSN 5855-01-128-1762
NSN 6240-01-633-9357
NSN 6220-01-253-5172
NSN 5996-01-441-7910
NSN 6110-01-541-5292
NSN 5920-01-486-8817