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 6240-01-360-6965
NSN 6130-01-551-1012
NSN 5935-01-474-5571
NSN 6105-01-103-3127
NSN 4140-00-459-9045
NSN 5996-01-458-0821
NSN 6145-01-012-2556
NSN 5945-00-231-4948
NSN 6130-01-149-7624
NSN 6240-00-627-9007
NSN 5915-00-280-8691
NSN 6150-01-053-1291