5219 x 1. The 5ft long XK120 Steering Column Stator Tube which features a machined slot at the base. The Manett or horn push / indicator assembly head has an 8" tube with series of indented pressings that grab onto the top of this tube. The tube protects the internal horn / indicator loom that runs down the steering column and is sealed at the base with a felt seal (unavailable, use 'O' ring below) that is trapped  under the lower column clamp to prevent fluid loss.

NOTE : Picture does not really show it to scale, it is quite long and expensive to ship as they are approx 5 foot long. Original Number Jag Ref 2865 \ Lucas 323418

For alternative O-Ring seal SEE : 9728