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 6135-01-408-0313
NSN 5985-01-597-4069
NSN 6130-01-029-4250
NSN 6620-01-371-5040
NSN 5999-00-900-4778
NSN 6105-00-561-7169
NSN 5999-00-233-8514
NSN 5985-01-070-9547
NSN 2925-01-076-6128
NSN 6150-00-160-9349
NSN 6105-01-085-5617
NSN 6320-01-462-2295