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 2925-00-155-2100
NSN 6685-00-526-9433
NSN 5950-01-554-5761
NSN 6240-00-284-1457
NSN 5950-01-043-9329
NSN 6645-01-097-5831
NSN 5920-01-475-4897
NSN 6620-00-470-3219
NSN 6220-00-736-4931
NSN 6240-01-482-9074
NSN 6650-01-473-1355
NSN 5985-00-963-8948