3) fused quartz, reference type, double surface, 3 in. Dia., 0.625 in. Thk, 0.000001 in. Flatness accuracy, with wooden case, surface angle shall b 10 to 15 minutes of arc to each other
No other part numbers with same form, fit, and function found.
Two or more optical flats. Excludes optical parallels.
NSN 5855-01-372-9728
NSN 5998-00-881-5226
NSN 6645-01-416-7973
NSN 5910-00-840-7806
NSN 5905-01-202-5445
NSN 5930-01-238-0718
NSN 6645-00-103-2517
NSN 5915-01-556-1625
NSN 6240-01-330-6805
NSN 5999-01-330-1143
NSN 5998-00-247-7201
NSN 6130-01-123-9041