Complete item name is ammonium fluoride, reagent; comes in white crystals
NSN 5975-00-682-7759
NSN 5990-01-601-0466
NSN 7035-00-455-7666
NSN 6145-01-258-1565
NSN 2925-01-394-5650
NSN 5985-01-251-2735
NSN 6110-01-209-0259
NSN 6610-00-764-4015
NSN 5999-01-548-5492
NSN 5999-00-467-6714
NSN 6320-01-425-1417
NSN 4140-01-444-3469