The Chief CMA643 is a decorative ring made for the outer tube of a CMS adjustable extension column. Adjustable CMS columns telescope, with a larger outer column (2.3 inches across) sliding over a smaller inner column, and this ring is sized to fit around that larger outer tube. Slipped over the column before it is threaded into a ceiling plate or mount, the ring sits against the fitting and hides exposed threads for a tidy, finished appearance in rooms where the projector or display pole is in plain view. The ITS description lists a 2.44-inch inside diameter, which gives a close fit on the outer column. The ring is purely cosmetic: it does not add strength or change installation. Chief's online listing for this part carries only its title and a product photo, with no published specifications, so finish colour and outside diameter are not stated here.
Key Features
- Sized for the CMS adjustable outer column
- 2.44" inside diameter (ITS)
- Hides threads and fitting edges
- Non-structural trim piece
Ideal Applications
Conference rooms, classrooms and venues using a Chief CMS adjustable column where the pole is visible from the seating area.
Compatibility
Chief CMS adjustable extension columns (outer column, 2.3" OD per Chief specs), e.g. CMS006009, CMS009012, CMS012018, CMS018024, CMS0203. For CMS/CPA fixed columns or the inner adjustable tube (1.9"), use the CMA640 ring. Confirm colour with your order.