An item of rigid material designed to cover a crucible, ignition, laboratory, it may have a handle-lifting device, or opening for delivery tube.
NSN 6135-01-596-8904
NSN 6645-01-104-6540
NSN 6685-01-420-0410
NSN 7035-00-104-7613
NSN 6130-01-422-4612
NSN 5855-01-471-3162
NSN 5925-01-394-3725
NSN 6145-00-004-7323
NSN 5950-00-682-2557
NSN 5945-00-223-7265
NSN 5960-01-570-8605
NSN 6135-01-226-4071