Material is high density polyetheline
An item constructed of various materials in various styles and cross-sectional shapes specifically designed as a closing device for a shipping and storage container (as modified). It may have handles and/or eyes to aid in removal. See also cover (1), shipping and storage drum ammunition, nuclear ordnance and guided missile except ammunition, nuclear ordnance and guided missile.
NSN 5945-01-538-5009
NSN 5960-01-339-3037
NSN 6105-01-434-3393
NSN 6620-01-248-0358
NSN 6645-01-318-6083
NSN 5855-00-688-9954
NSN 2925-01-310-3232
NSN 5998-01-629-9701
NSN 5960-00-813-6762
NSN 6685-01-055-7384
NSN 5998-01-212-9394
NSN 6145-01-391-6199