NF L22-451:2000 Aircraft bolts and nuts - Nuts, hexagonal, slotted/castellated, normal height, ISO M or ISO MJ threads, 4H5H or 5H tolerance class according to diameter
2000NF L22-451:2000 Aircraft bolts and nuts - Nuts, hexagonal, slotted/castellated, normal height, ISO M or ISO MJ threads, 4H5H or 5H tolerance class according to diameter
1987NF L22-451:1987 HEXAGONAL CASTELLATED NUTS. NORMAL HEIGHT. ISO THREAD. 4H5H OR 5H TOLERANCE CLASS ACCORDING TO DIAMETER.