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 6105-01-629-1964
NSN 6240-00-075-0445
NSN 5905-01-045-2703
NSN 5910-01-424-5147
NSN 6620-00-257-2783
NSN 6220-01-396-0194
NSN 6320-01-536-3077
NSN 6150-01-620-1576
NSN 5975-01-557-7402
NSN 5965-01-024-6137
NSN 5990-01-179-5625
NSN 2925-00-580-4931