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 5996-01-042-8554
NSN 6110-01-541-2639
NSN 7035-01-362-4924
NSN 6110-01-535-1766
NSN 6130-01-370-5243
NSN 6620-00-193-9503
NSN 6135-00-985-7846
NSN 6135-01-415-1163
NSN 5935-00-138-3627
NSN 5895-01-291-9286
NSN 6150-01-203-6704
NSN 6620-01-528-7510