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 6645-00-402-5622
NSN 6110-01-065-7877
NSN 5915-01-056-3620
NSN 5996-01-485-7918
NSN 5910-01-026-4935
NSN 5950-01-412-9974
NSN 5905-00-214-9985
NSN 7035-01-327-4456
NSN 6320-01-255-2096
NSN 5975-01-212-3651
NSN 5945-01-490-4599
NSN 5855-01-147-6024