Special Features:

Cover comes with 3 plugs each made from tool steel type 06 per qq-t-570and each plug is coated with black oxide per mil-c-13294 class 1; 1 plug hashead outside diameter of 1.82in; 1 plug hashead outside diameter of 2.30in; last plug has head outside diameter of 5.25in; large plug held by 2 screws and smaller plugs held by 1 screw each, all 4 per ms16997-59; heat treat plugs per mil-h-6875 to rockwell c 45-50

Properties:

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.