This item is a set of 3 'O' ring suitable for the BSA twin, A65.
OEM part numbers: 70-8782
This item is made from Nitrile and is the most cost effective and commonly available O-ring material. Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. NBR is good for applications where the O ring is exposed to fats, greases and animal or vegetable oils (see spec sheet).
N.B. ONLY the 'O' rings are included in this sale.
The engine in the photograph is my own '71 A65
If you have ANY questions then please just ask. I always leave feedback once I know the goods have arrived.