- Block geometry
- Envelope, contact area, locating faces and mounting.
- Loading
- Load direction, contact distribution and compression requirements.
- Contact faces
- Counterface, flatness, finish and agreed deformation criteria.
- Thermal conditions
- Actual part temperature, thermal cycle and lubrication where applicable.
- Material & acceptance
- Specified alloy and standard, supply condition, drawing revision, quantity, inspection criteria and required records.
- Supply form
- Block casting with agreed contact-surface machining.