Specification Brand : Chemglass ItemName : Chemglass CG-1842-06 - NMR Tube Cap, 5mm, Black ItemTypeKeyword : science-lab-cap-plugs Manufacturer : CHEMGLASS LIFE SCIENCES, LLC NumberOfItems : 1 PartNumber : CG-1842-06 ProductDescription : Made from polyethylene, these caps are sized to fit 5mm O.D. NMR sample tubes. Cap fits tightly to stay in place during increased internal vaporization pressure. ProductSiteLaunchDate : 2019-07-23T20:05:33.920Z