A long spar, beam or a-frame structure, to support a hoist.
Classification: Pulley tackle and hoists, other than skip hoists or hoists of a kind used for raising vehicles, not powered by electric motor
NSN 5975-01-271-0322
NSN 5998-01-090-0212
NSN 5915-01-130-8735
NSN 6220-01-450-1253
NSN 6320-00-070-4544
NSN 6220-00-586-0367
NSN 6150-01-383-8050
NSN 6220-01-446-6430
NSN 6130-01-371-2960
NSN 5930-01-245-8636
NSN 5920-01-218-5742
NSN 5920-00-005-4604