.50 thick, 6061-t4 per qq-a-250/11
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.
NSN 5950-00-927-1863
NSN 5990-00-101-8318
NSN 6145-00-946-2033
NSN 5895-01-106-8481
NSN 6610-00-051-0989
NSN 5950-01-634-0677
NSN 5935-01-420-6203
NSN 6110-00-939-2207
NSN 6685-01-410-7583
NSN 5905-00-485-6478
NSN 5895-01-660-0514
NSN 5935-01-270-0609