A ladder of fixed length and requires a means of support. The sidepieces (rails) may be tapered or flared near the bottom.
NSN 5998-01-580-0758
NSN 5915-00-199-0781
NSN 5895-01-075-5812
NSN 6135-01-373-2518
NSN 6685-01-220-2935
NSN 5895-01-151-9689
NSN 5935-01-359-5470
NSN 6105-01-410-8948
NSN 5999-01-041-2709
NSN 6135-01-430-3119
NSN 6620-00-774-3638
NSN 5835-01-457-7951