Next higher assembly is instrumented sheave
A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes all covers not specifically designed to provide access for the purposes listed above.
Classification: Other articles of iron or steel not wire nesoi
NSN 4140-01-121-7902
NSN 5935-01-329-4367
NSN 6110-01-340-4124
NSN 6610-00-398-9673
NSN 5975-00-060-4050
NSN 6320-01-495-6893
NSN 5920-01-060-5429
NSN 5915-01-521-9486
NSN 6685-01-214-0359
NSN 6105-00-580-1435
NSN 5925-01-380-6305
NSN 5835-01-065-3316