IS 3665 Involute splines (indigenous)
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- IS 3665 2024 (First Revision)
- Publisher
- IS
- Part family
- Shafts, keys & splines
- Reviewed
- 23 October 2026 · source checked
Is IS 3665 still current?
Yes. IS 3665 2024 (First Revision) is the latest edition MechAtlas found (MechAtlas review: 23 October 2026). Check the publisher for amendments before you specify it.
What it covers
Involute splines (indigenous)
Equivalent and related standards
| Standard | Relationship | Note |
|---|---|---|
| ISO 4156 | Similar purpose — not interchangeable without an engineering check |
“Similar” never means interchangeable without an engineering check.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for IS 3665 or the IS store.
Open in MechAtlasCheck a drawing callout
Other shafts, keys & splines standards
- ISO 3117 Withdrawn
Tangential keys - ISO 496 Withdrawn
Shaft heights - ISO 773 Withdrawn
Rectangular or square parallel keys and keyways (old) - ISO/TR 775 Withdrawn
Cylindrical and 1:10 conical shaft ends - ASME B17.1 Current
Keys and keyseats (inch) - DIN 332-1/-2 Current
Centre holes, incl. threaded type DR - DIN 6885-1 Current
Parallel keys and keyways - DIN 743-1..4 Current
Shaft and axle load capacity - DIN 748-1 Current
Cylindrical shaft ends - IS 2048 Current
Parallel keys and keyways (indigenous) - ISO 14 Current
Straight-sided splines - ISO 4156-1 Current
Involute splines, metric, side fit