Disc is electro-formed copy of master disc within plus or minus 50.000 microinches; used with 5x illuminated (flash) magnifier to visually compare grit/slag blast cleaned surfaces to the disc (1.5 to 5.5 mils); includes vinyl disc case; complies with astm d4417
No other part numbers with same form, fit, and function found.
NSN 5925-01-349-0855
NSN 6620-01-296-0873
NSN 5990-01-620-6736
NSN 6220-00-107-1835
NSN 5835-01-147-7526
NSN 2925-00-964-7128
NSN 5990-01-305-8121
NSN 6685-01-364-0458
NSN 6145-01-028-5990
NSN 5930-00-930-8384
NSN 5935-01-219-6511
NSN 6685-01-201-0817