The company calls this a cover taf
No other part numbers with same form, fit, and function found.
A cover of various shapes, sizes and materials, specifically designed to fit over the opening(s) of mechanical connections such as drive lines, air and fluid ducts and the like, of various equipments to provide mechanical protection and/or prevent the entrance of foreign matter during shipping, storage or maintenance. the cover is not an integral part of the equipment when the equipment is installed in the end item. it is designed to be attached by means of bolt holes, slots, mounting ears, tabs and the like. see also cap (1), protective, dust and moisture seal. excludes cover, access.
Classification: Gaskets,washers & other seals
NSN 6145-01-380-4534
NSN 5945-01-591-1140
NSN 6240-00-041-5043
NSN 6130-01-014-4176
NSN 5835-01-090-0784
NSN 6645-01-157-9103
NSN 5925-00-584-0891
NSN 5965-01-544-7577
NSN 6645-00-044-7011
NSN 5905-01-462-1214
NSN 5960-01-271-8107
NSN 4140-00-161-2586