Ink pad for the lens measuring instrument; end item nsn 6540-00-181-8037, found in army unit assemblage n315, medical materiel set eye exam clinic: depmeds
NSN 5915-01-649-5992
NSN 5945-01-126-5915
NSN 5985-00-397-7296
NSN 5960-01-263-3407
NSN 6240-00-212-4305
NSN 5975-01-088-7470
NSN 4140-00-585-8404
NSN 6135-01-019-7687
NSN 5960-00-079-5711
NSN 6220-00-460-4770
NSN 5855-01-530-4147
NSN 5945-00-199-7779