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 2925-01-040-6354
NSN 4140-00-058-9839
NSN 5915-00-232-8153
NSN 5925-01-078-6673
NSN 6240-01-340-7591
NSN 6610-01-511-5260
NSN 6220-00-959-5698
NSN 7035-01-579-4029
NSN 6105-00-553-8943
NSN 7035-00-535-8109
NSN 5996-01-053-1617
NSN 5998-00-522-4005