{
  "sources": [
    {
      "page": "https://www.mgocspares.co.uk/product/aha7029/wishbone-pan-pin-midget-new",
      "image": "https://www.mgocspares.co.uk/ImageHandler/128248w1000h1000/AHA7029?sequence=128248&width=1000&height=1000",
      "sha256": "daeab95f2015d3c28ae97feaec3e238e9293530855e90ab66e4342509eceb473",
      "observation": "Open U-shaped recess between the two inner eyes, circular spring opening with four fixing holes, formed perimeter lip and a deep forward wall."
    },
    {
      "page": "https://www.mgocspares.co.uk/product/aha7029/wishbone-pan-pin-midget-new",
      "image": "https://www.mgocspares.co.uk/ImageHandler/128309w1000h1000/AHA7029_1?sequence=128309&width=1000&height=1000",
      "sha256": "52ceeac661ba49a3cf2e2df0d89f5c5e843007709cd55fa3ba67daea438bf681",
      "observation": "Reverse view confirms the open inner recess, open underside of pressing and outer fork around the fulcrum pin."
    }
  ],
  "access": "Both own-product photographs downloaded and visually inspected on 2026-10-26. No dimensions derived from pixels.",
  "owner_dimensions_applied": false,
  "current_reference_discrepancy": {
    "old_inner_edge_x_mm": 287.8666666666667,
    "spring_axis_abs_x_mm": 381.0,
    "aperture_radius_mm": 80.43333333333334,
    "central_land_between_old_inner_edge_and_aperture_mm": 12.699999999999966,
    "finding": "The current circular opening leaves only12.7mm of top sheet to its straight inner edge. A broad recess cannot be copied independently of the aperture/web relationship. Existing four spring-seat axes and both inner/outer fulcrum axes remain uncalibrated drawing references."
  },
  "limits": "Replacement product form only; not fitted part identity, calibrated profile, sheet gauge, mounting map, weld ownership, spring restraint or verified removal path.",
  "selected_geometry": {
    "aperture_radius_mm": 60,
    "projected_sheet_gauge_mm": 2.54,
    "recess_maximum_abs_x_mm": 298,
    "curve_representation": "64 planar chord segments through an estimated spline; selected for stable STEP exchange, not a traced profile.",
    "recess_scope": "A shallow recess within the inherited pivot/spring frame, not a recovered full-depth factory pressing. Its inner return follows an illustrative boundary outside the unchanged80mm seat disk.",
    "rejected_construction": "A deeper305mm maximum-X return crossed the retained seat disk by373.74774mm3 per side and was not retained. No seat or body station was shifted."
  }
}