A long spar, beam or a-frame structure, to support a hoist.
Classification: Parts of pulley tackle and hoists other than skip hoists or hoists of a kind used for raising vehicles
NSN 5965-01-561-3139
NSN 6135-00-334-4500
NSN 6240-01-144-5898
NSN 5960-01-488-5817
NSN 6645-00-451-6462
NSN 6105-01-573-1710
NSN 5945-00-797-8739
NSN 6645-00-004-8628
NSN 6110-00-895-6034
NSN 6685-01-094-3340
NSN 6610-00-089-6950
NSN 5975-00-086-2309