TRS710 ‘O’ RING.  Hydraulics O-Ring for many applications in Nuffield, Leyland and Marshall tractors;

Hydraulic Unit to Gearbox
Used to seal the hydraulic unit to the gearbox on Lightweight Leyland tractors:

BMC Mini
Nuffield 4/25
Leyland 154, 184, 235, 302
Marshall 302
see number 36 in this illustration.

Depth Control Lever
Used to seal the depth control lever on Nuffield tractors:

Nuffield 342, 460, 10/42, 10/60

High/Low Selector Shaft
Used to seal the high/low selector shaft on the 5×2 10 speed gearbox:

Nuffield 10/42, 10/60, 3/45, 4/65
Leyland 253, 245, 344, 384, 255, 270, 262, 272
Leyland 285, 2100, 485, 4100
see number 22 in this illustration

Hydraulic Pipe
Used to seal the hydraulic pipe on the 2000 psi and 2500 psi hydraulic systems:

Nuffield 3DL, 4DM, 342, 460, Nuffield 10/42, 10/60, 3/45, 4/65
see number 22 in this illustration