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 5950-01-589-0834
NSN 5855-01-584-1365
NSN 6150-01-253-5249
NSN 5910-00-580-4742
NSN 5910-01-266-5748
NSN 5915-01-534-5154
NSN 6240-00-221-0859
NSN 5915-01-448-7248
NSN 5999-01-397-2572
NSN 6130-01-441-9507
NSN 5855-01-351-6277
NSN 5935-01-367-5589