Navy offset extension tube, part of climbing protection system used on permanent type ladders, material is stainless steel type 316, 0.120 inches thick
NSN 6650-00-947-4380
NSN 6620-01-286-1374
NSN 6240-01-492-8893
NSN 2925-01-430-4206
NSN 6105-00-678-3355
NSN 5920-01-306-3334
NSN 6145-01-371-2916
NSN 7035-01-098-5474
NSN 5999-01-352-5855
NSN 6610-01-067-6591
NSN 5960-00-232-2512
NSN 5855-01-064-8961