Complete item name is rhenium oxide, reagent; comes in grey powder form
NSN 5990-00-490-3786
NSN 6320-00-284-1524
NSN 6135-00-087-5300
NSN 5996-01-065-0939
NSN 6110-00-104-8009
NSN 6685-01-510-2816
NSN 5975-01-082-9080
NSN 5965-01-569-6704
NSN 6105-01-401-5361
NSN 5998-01-055-6654
NSN 5895-00-617-6340
NSN 4140-01-400-3610