A flat piece of fireproof material with a hole in the center designed primarily to expose only the specified area of a flask bottom to the heat source used in distillation tests. The center hole may have a bevel recess at the top.
Classification: Other instruments and appliances used in medical, surgical, dental or veterinary sciences, nesoi
NSN 5930-01-033-7919
NSN 6240-01-279-0552
NSN 6685-01-334-1444
NSN 6130-00-696-8309
NSN 6240-01-206-7882
NSN 6320-01-412-2973
NSN 5990-01-504-9265
NSN 6650-01-415-8984
NSN 6145-00-001-8271
NSN 5996-00-479-5939
NSN 4140-00-170-5152
NSN 5905-01-359-1963