Hardened case for the slit light ophthalmic end item nsn 6540-01-520-7942. Found in army assemblage n315, medical materiel set eye exam clinic: depmeds
NSN 6320-01-406-6098
NSN 6610-00-061-7882
NSN 5895-00-894-0048
NSN 6610-01-016-3566
NSN 5965-01-617-4523
NSN 6240-01-421-9388
NSN 6145-00-596-2606
NSN 5935-00-896-0770
NSN 5895-00-111-1560
NSN 6150-00-303-1565
NSN 5985-00-568-2375
NSN 2925-01-418-3296