1081h is model number of core loss tester
NSN 5905-01-502-0638
NSN 6130-01-334-9320
NSN 5996-01-509-6443
NSN 6110-01-188-0147
NSN 6110-00-840-6560
NSN 5998-01-183-6255
NSN 6645-00-845-1071
NSN 6320-01-449-1014
NSN 5996-00-578-9092
NSN 5895-01-322-8395
NSN 5925-00-989-4713
NSN 5910-01-412-5969