Standards catalogue

21 - Mechanical systems and components for general use

ICS Field
21.020 Characteristics and design of machines, apparatus, equipment
Including reliability, dependability, maintainability, durability, etc.
Safety of machinery, see 13.110
21.040 Screw threads
Screw threads, see 49.030.10
21.060 Fasteners
Implants for surgery, prosthetics and orthotics, see 11.040.40
Fasteners for aerospace construction, see 49.030
21.080 Hinges, eyelets and other articulated joints
21.100 Bearings
21.120 Shafts and couplings
21.140 Seals, glands
Seals for pipe and hose assemblies, see 23.040.80
21.160 Springs
Spring steels, see 77.140.25
21.180 Housings, enclosures, other machine parts
21.200 Gears
21.220 Flexible drives and transmissions
21.240 Rotary-reciprocating mechanisms and their parts
Including pistons, piston-rings, crankshafts, etc. for general engineering
21.260 Lubrication systems
Lubricants, industrial oils and related products, see 75.100