W/ribs on top outside dia. Extending 45 degrees to left and 45 degrees to right of center of inside dia.
A structural shape fabricated from nonmetallic material(s) having a peculiar preformed cross-sectional form. It may have a reinforcing agent(s) and backing. Excludes seal, nonmetallic special shaped section.
NSN 7035-01-027-2259
NSN 5960-00-845-4940
NSN 5996-01-467-8128
NSN 5910-01-280-3757
NSN 7035-01-358-5888
NSN 5990-01-013-0793
NSN 5975-01-027-0253
NSN 6620-01-205-0320
NSN 6150-01-423-7002
NSN 5835-01-576-5307
NSN 5930-01-512-1938
NSN 5855-00-185-1560