Mechanical Seal Drawing

{
  "title_block": "<common>",
  "drawing_title": "str",
  "parent_equipment_tag": "str",
  "parent_equipment_description": "str",
  "pump_type": "str",
  "seal_arrangement": "str",
  "seal_api_plan": "str",
  "api_682_category_type_arrangement": "str",
  "seal_type": "str",
  "seal_size_mm": "num",
  "rotating_face_material": "str",
  "stationary_face_material": "str",
  "elastomer_material": "str",
  "spring_material": "str",
  "gland_plate_material": "str",
  "sleeve_material": "str",
  "operating_conditions": {
    "service_fluid": "str", "pressure_barg": "num",
    "temperature_c": "num", "shaft_speed_rpm": "num"
  },
  "flush_plan_description": "str",
  "barrier_buffer_fluid": "str",
  "seal_support_system_refs": ["str"],
  "dimensional_details": [
    {"parameter": "str", "value_mm": "num"}
  ],
  "assembly_views": [
    {"view_name": "str", "scale": "str"}
  ],
  "bill_of_materials": [
    {"item": "str", "description": "str", "material": "str", "qty": "int"}
  ],
  "reference_drawings": [
    {"drawing_number": "str", "description": "str"}
  ],
  "general_notes": ["str"],
  "revision_history": [
    {"revision": "str", "date": "str", "description": "str",
     "drawn_by": "str", "checked_by": "str",
     "engineered_by": "str", "approved_by": "str"}
  ]
}