Mechanical standards: current, changing or replaced?
606 standards from 32 publishers, checked for status and edition. Pick a part family, or search in the app.
Part families
- Fasteners & threads (137)
Bolts, nuts, washers, pins, threads, torque - Welding (13)
Symbols, WPS/WPQR, welders, consumables - Springs (6)
Helical, disc springs, spring wire - Bearings (28)
Rolling & plain bearings, housings, life - Shafts, keys & splines (14)
Shaft ends, keys, keyways, splines - Gears & gearboxes (20)
Accuracy, load rating, failure terms - Couplings & alignment (10)
Couplings, bores, alignment tolerances - Belts, chains & pulleys (24)
V-belts, timing belts, roller chains - Seals & O-rings (20)
Lip seals, O-rings, mechanical seals - Lubrication, vibration & balancing (17)
Oil grades, cleanliness, vibration, balance - Pipes, flanges & gaskets (59)
Pipe, fittings, PN/Class flanges, gaskets - Valves (32)
Gate, globe, ball, butterfly, relief, testing - Pumps, compressors & fans (19)
Pumps, compressed air, fans and ducts - Pressure vessels & piping codes (10)
Boilers, vessels, tanks, piping codes - Dust collection & explosion (7)
Baghouses, combustible dust, venting - Hydraulics & pneumatics (13)
Symbols, cylinders, hoses, fittings - Belt conveyors (30)
Design, belts, idlers, pulleys, safety - Lifting & rigging (25)
Cranes, wire rope, slings, hooks - Structural steel design (12)
Design codes, fabrication, access, grating - Steel grades & sections (54)
Structural & machine steels, sections, plate - Castings, non-ferrous & polymers (9)
Cast iron, steel castings, bronze, rubber - Testing, certificates & NDT (14)
Hardness, tensile, impact, EN 10204, NDT - Corrosion protection (6)
Surface prep, paint systems, galvanizing - Tolerances & drawings (13)
Fits, general tolerances, GD&T, surface - Machinery safety & LOTO (7)
Risk, guards, interlocks, e-stop, LOTO - Maintenance & reliability (7)
Terminology, KPIs, FMEA, RCM, quality
Replaced or withdrawn: check before you specify (47)
- ANSI/AGMA 2015-1-A01 Withdrawn
Accuracy classification system - tangential measurements for cylindrical gears · ANSI/AGMA 2015-1-A01 (R2014) - ASME B18.22.1 Withdrawn
Plain washers (inch) · ASME B18.22.1-1965 (R2008) - status unconfirmed - BS 21 Withdrawn
Pipe threads where pressure-tight joints are made on the threads (old) · BS 21:1985 - BS 5950 Replaced
Old UK steel design code · Withdrawn 2010 - DIN 7 Replaced
Parallel pins (old) · DIN 7:1981-09 - DIN 94 Replaced
Split pins (old) · DIN 94:1983-09 - DIN 125-1 Replaced
Washers, product grade A, up to 250 HV · DIN 125-1:1990-03 - DIN 127 Withdrawn
Split spring lock washers (still sold) · DIN 127 1987-10 (withdrawn) - DIN 912 Replaced
Hexagon socket head cap screws (ISO 4762 modified) · DIN 912:1983-12 - DIN 913 Replaced
Hexagon socket set screws, flat point (ISO 4026 modified) · DIN 913:1980-12 - DIN 916 Replaced
Hexagon socket set screws, cup point (ISO 4029 modified) · DIN 916:1980-12 - DIN 931-1 Replaced
Hexagon head bolts with shank (ISO 4014 modified) · DIN 931-1:1987-09 - DIN 933 Replaced
Hexagon screws — legacy reference · 1987-09 — legacy reference - DIN 934 Replaced
Hexagon nuts, metric coarse and fine thread · DIN 934:1987-10 - DIN 963 Replaced
Slotted countersunk head screws · DIN 963:1990-08 - DIN 982 Replaced
Prevailing torque hex nuts, non-metallic insert, high type · DIN 982:1987-05 - DIN 985 Replaced
Prevailing torque thin hex nuts, non-metallic insert · DIN 985:1987-05 - DIN 1025-2 Withdrawn
Wide flange I-beams (IPB / HEB series) · DIN 1025-2:1995-11 - DIN 1481 Replaced
Heavy spring pins (old) · DIN 1481:1978-11 - DIN 2633 Replaced
Weld-neck flanges PN 16 (old DIN) · unconfirmed - legacy reference - DIN 2999-1 Replaced
Whitworth pipe threads (old) · DIN 2999-1:1983-07 - DIN 3771-1 Replaced
Fluid systems - O-rings - dimensions · DIN 3771-1:1984-12 - DIN 3961 Replaced
Tolerances for cylindrical gear teeth - bases · DIN 3961:1978-08 - DIN 3962-1 Replaced
Tolerances for cylindrical gear teeth - individual deviations · DIN 3962-1:1978-08 - DIN 6325 Replaced
Hardened parallel pins m6 (old) · DIN 6325:1971-10 - DIN 6914 Replaced
HV hex bolts for steel structures (old) · DIN 6914:1989-10 - DIN 7337 Replaced
Break mandrel blind rivets (old) · DIN 7337:1991-08 - DIN 7991 Replaced
Hexagon socket countersunk head screws · DIN 7991:1986-01 - DIN 8187-1 Replaced
Roller chains, European type · DIN 8187-1:1996-03 - DIN 8188-1 Replaced
Roller chains, American type · DIN 8188-1:1996-03 - DIN 8196-1 Replaced
Sprockets for roller chains - tooth gap form · DIN 8196-1:1987-03 - DIN 9021 Replaced
Washers, outside diameter about 3 x thread · DIN 9021:1990-03 - DIN 22131-1 Replaced
Steel cord conveyor belts - Dimensions, requirements (old German) · DIN 22131-1:1988-11 - DIN 51502 Replaced
Lubricant designation and marking (old single-part) · DIN 51502:1990-08 - EN 10277 Replaced
Bright steel products · EN 10277 2018 → EN ISO 683-7:2024 - IS 2062 Replaced
Hot-rolled structural steel · IS 2062:2011 withdrawn → IS 2062 (Part 1):2025 and (Part 2):2026 - IS 5129 (Part 1) Replaced
Rotary shaft lip type seals - nominal dimensions and tolerances · IS 5129 (Part 1):2000 - IS 6132 Replaced
Shackles (old Indian) · IS 6132:2003 - IS 9975 (Part 1) Replaced
Specification for O-rings - dimensions · IS 9975 (Part 1):1981 - IS 12778 Withdrawn
Parallel flange beams, columns and bearing piles · IS 12778:2004 - IS 13159-1 Withdrawn
Pipe flanges, dimensions · 1993, withdrawn, not superseded - ISO 496 Withdrawn
Shaft heights · ISO 496 withdrawn - ISO 773 Withdrawn
Rectangular or square parallel keys and keyways (old) · ISO 773 (withdrawn) - ISO 3117 Withdrawn
Tangential keys · ISO 3117 withdrawn - ISO 5296 Withdrawn
Synchronous belts MXL–XXH · ISO 5296 withdrawn - ISO/TR 775 Withdrawn
Cylindrical and 1:10 conical shaft ends · ISO/R 775:1969 withdrawn, no ISO successor - ISO/TS 16281 Replaced
Advanced rating life calculation · ISO/TS 16281:2008 withdrawn → ISO 16281:2025