A ladder of fixed length and requires a means of support. The sidepieces (rails) may be tapered or flared near the bottom.
NSN 5835-01-408-7576
NSN 6240-01-474-6914
NSN 6620-01-259-5944
NSN 5950-01-232-0492
NSN 5935-01-069-2213
NSN 5950-01-658-8347
NSN 5985-01-051-1663
NSN 5960-01-539-1956
NSN 5975-01-336-9064
NSN 6110-01-410-8934
NSN 5999-01-121-6164
NSN 5915-00-353-0853