A long spar, beam or a-frame structure, to support a hoist.
NSN 5960-01-567-1096
NSN 5905-00-044-6783
NSN 5920-01-226-7876
NSN 6685-00-974-2596
NSN 5915-00-310-3156
NSN 6220-01-456-7083
NSN 6610-01-461-8180
NSN 6645-01-391-1983
NSN 5915-00-804-3026
NSN 2925-01-203-0493
NSN 6645-01-290-3930
NSN 6650-00-726-4242