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 6130-01-162-6719
NSN 5925-01-085-6444
NSN 6110-01-269-8482
NSN 5895-01-455-6572
NSN 5945-01-567-3043
NSN 5925-01-571-1741
NSN 5935-01-252-7229
NSN 5930-00-688-7874
NSN 6620-01-435-0799
NSN 6240-01-263-5343
NSN 5920-01-384-9776
NSN 5905-01-213-1496