A long spar, beam or a-frame structure, to support a hoist.
NSN 6620-01-388-8955
NSN 5975-01-048-1428
NSN 5999-01-625-4262
NSN 7035-01-387-0493
NSN 5945-00-571-7934
NSN 6240-00-522-6009
NSN 6650-00-996-9132
NSN 6110-00-080-2767
NSN 5935-00-573-1347
NSN 6240-00-925-2194
NSN 6240-01-004-9634
NSN 6645-01-223-7274