American Petroleum Institute

Drilling and Well Servicing Equipment - FIFTH EDITION; ERRATA: AUGUST 2010; EFFECTIVE DATE: DECEMBER 1, 2010
 N SPEC 7K

Annotation

This specification provides general principles and specifies requirements for design, manufacture, and testing of new drilling and well-servicing equipment and of replacement primary load-carrying components manufactured subsequent to the publication of this specification.

This specification is applicable to the following equipment:

a) rotary tables;

b) rotary bushings;

c) standard rotary slips designed for use in standard rotary bowls with a 33.333 cm/m (4 in./ft) API taper;

d) nonstandard rotary slips without a taper of 33.333 cm/m (4 in./ft) for use in manual spiders as described in Item i);

e) high-pressure mud and cement hoses;

f) piston mud-pump components;

g) drawworks components;

h) manual spiders that use standard rotary slips as described in Item c) that are not capable for use as elevators and are installed on or above the master bushing/rotary table;

i) manual spiders that use nonstandard rotary slips not having a taper of 33.333 cm/m (4 in./ft) not capable of use as elevators, and installed on or above the master bushing/rotary table;

j) spring, pneumatic, or hydraulic spiders with integral slips not capable for use as elevators and are installed on or above the master bushing/rotary table;