FF-N-836D, FEDERAL SPECIFICATION, NUT: SQUARE, HEXAGON, CAP, SLOTTED, CASTLE, KNURLED, WELDING AND SINGLE BALL SEAT (24 APR 1972)

FF-N-836D, FEDERAL SPECIFICATION, NUT: SQUARE, HEXAGON, CAP, SLOTTED, CASTLE, KNURLED, WELDING AND SINGLE BALL SEAT (24 APR 1972)., This specification covers cap, castle, hexagon, knurled, slotted, square, welding and single ball seat nuts (see 6-3).