ISO 6743-9 / NLGI grades Grease classification; consistency grades
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- ISO 6743-9:2003; ASTM D217-21a
- Publisher
- ISO
- Part family
- Lubrication, vibration & balancing
- Reviewed
- 23 October 2026 · source checked
Is ISO 6743-9 / NLGI grades still current?
Yes. ISO 6743-9:2003; ASTM D217-21a is the latest edition MechAtlas found (MechAtlas review: 23 October 2026). Check the publisher for amendments before you specify it.
What it covers
Grease classification; consistency grades
NLGI consistency grades 000–6 are defined by worked penetration under ASTM D217; there is no separate NLGI-numbered standard.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for ISO 6743-9 / NLGI grades or the ISO store.
Open in MechAtlasCheck a drawing callout
Other lubrication, vibration & balancing standards
- DIN 51502 Replaced
Lubricant designation and marking (old single-part) - DIN 51825 Changing
Lubricating greases K - Classification and requirements - ISO 10816-7 Changing
Rotodynamic pump vibration (no 20816 part yet) - ISO 18436-2 Changing
Vibration analyst certification - ISO 20816-1 Changing
Vibration measurement and evaluation, general (replaced ISO 10816-1) - ISO 20816-3 Changing
Industrial machines >15 kW, 120–30 000 r/min (replaced 10816-3 and 7919-3) - ASTM D4950 Current
Automotive service greases - Classification - IS 7623 Current
Multipurpose industrial grease - ISO 13373-1/-2/-3 Current
Vibration condition monitoring - ISO 14694 Current
Industrial fan balance and vibration - ISO 17359 Current
Condition monitoring, general guidelines - ISO 20816-2/-4/-5/-8/-9 Current
Vibration of turbines, hydro, compressors, gear units etc.