[
  {
    "id": "H-01",
    "part": "Lower_shell",
    "quantity": 1,
    "material": "PC/ABS graphite; prototype PA12/ASA",
    "note": "Molded-in color; no coating",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-02",
    "part": "Upper_shell",
    "quantity": 1,
    "material": "PC/ABS warm stone; prototype PA12/ASA",
    "note": "Fine matte texture; no metal near antenna",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-03",
    "part": "Status_pipe",
    "quantity": 1,
    "material": "Clear PMMA optical part",
    "note": "Machined/printed optical prototype; supplier optical grade",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-04",
    "part": "Status_bezel",
    "quantity": 1,
    "material": "0.5 mm black PET applique",
    "note": "Die-cut/laser-cut; adhesive compatibility to approve",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-05",
    "part": "Field_boot",
    "quantity": 1,
    "material": "TPU prototype; elastomer production candidate",
    "note": "11.4 mm clear core; supplier must size actual jacket; tie anchor carries pull",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-06",
    "part": "Power_boot",
    "quantity": 1,
    "material": "TPU prototype; elastomer production candidate",
    "note": "8.8 mm clear core; bounded route plus internal tie anchor",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-07",
    "part": "USB_bezel",
    "quantity": 1,
    "material": "Replaceable elastomer insert",
    "note": "16 x 9.8 mm aperture; not sealed",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-08",
    "part": "Foot",
    "quantity": 4,
    "material": "Adhesive-backed silicone/EPDM",
    "note": "11.6 x 5.6 x 1.6 mm envelope; 1.2 mm projection",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-09",
    "part": "Battery_strap",
    "quantity": 2,
    "material": "4 mm insulating removable strap",
    "note": "CAD is a loop envelope; closure and retention must be selected",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-10",
    "part": "Case screw",
    "quantity": 4,
    "material": "M2.5 x 10 thread-forming candidate",
    "note": "3.2 mm clearance / 5.8 mm counterbore; pilot and torque supplier approval",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-11",
    "part": "PCB screw",
    "quantity": 4,
    "material": "M2.5 x 6 thread-forming candidate",
    "note": "2.0 mm blind pilot; remaining floor 1.4 mm",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-12",
    "part": "Cable tie",
    "quantity": 2,
    "material": "Nylon 2.5 mm width candidate",
    "note": "Pass through modeled anchors; qualify on sleeved/jacketed bundles",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": false
  },
  {
    "id": "H-13",
    "part": "Mounting_plate",
    "quantity": 1,
    "material": "Optional PA12 / molded polymer",
    "note": "156 x 56 x 2.4 mm; external mounting ears",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": true
  },
  {
    "id": "H-14",
    "part": "Bracket screw",
    "quantity": 2,
    "material": "Optional M3 x 8 countersunk thread-forming candidate",
    "note": "Blind pilot; head profile and strip/pull strength require approval",
    "unit_price_usd": null,
    "price_status": "UNQUOTED",
    "optional": true
  }
]