Concave shape prevents sliding; returns condensation to beaker
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5996-01-358-5847
NSN 6130-00-952-0819
NSN 5910-01-502-6614
NSN 5998-00-482-2728
NSN 6320-01-462-2295
NSN 6145-00-500-5161
NSN 6685-00-339-3699
NSN 5920-00-242-2758
NSN 5950-00-212-7827
NSN 6135-00-309-0074
NSN 5915-01-046-8139
NSN 5985-01-075-4699