Per drawing l4800807 (rev.K, note 20), this can sub for -263 on b1b aircraft 1 through 9 only; for -273 on aircraft 10 through 21 only
A length of tubing, straight, or prebent to a predetermined angle, with added component(s) that forms an end connection on one or both ends. For flexible tube assemblies, see hose assembly (as modified). For items having perforations in the tubing or attachments, see tube assembly, fire extinguishing system. Excludes items having integral preformed or plain ends, tube, bent (as modified), and items which are branched or forked.
NSN 6145-00-752-2038
NSN 5999-00-269-5320
NSN 6610-01-146-0331
NSN 5895-00-369-7108
NSN 5920-01-152-1949
NSN 6650-01-496-2662
NSN 5895-00-483-3428
NSN 5905-00-078-8814
NSN 7035-01-139-2637
NSN 5935-01-493-4773
NSN 5930-00-536-3989
NSN 5910-01-577-0196