NAS1791 Self Locking Nut Plate, one lug, floating, variable counterbore, replacement nut element, 125 KSA FTU, 450 DEG F and 800 Deg F. Military Standard Nut plates are available in several sizes and types; other standards include: MS14179, MS20501, MS21047, MW21048, MS21049, MS21050, MS21051, MS21052, MS21054, MS21055, MS21056, MS21058, MS21059, MS21060, MS21061, MS21062, MS21069, MS21070, MS21071, MS21072, MS21073, MS21074, MS21075, MS21076, MS21077, MS21078, MS21080, MS21081, MS21082, MS21086, MS21087, NAS1791, NAS1803, NAS1803, NAS463: NAS1791 NUT, SELF-LOCKING, PLATE – ONE LUG, FLOATING, VARIABLE COUNTERBORE, REPLACEMENT NUT ELEMENT, 125 KSA FTU, 450 DEG F AND 800 DEG F