{
  "category": "Pipe Hangers & Supports",
  "vertical": "plumbing-and-pvf",
  "source": "https://getclaro.ai/resources/attribute-library/plumbing-and-pvf/pipe-hangers-and-supports/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "product_type",
      "label": "Product Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Adjustable Clevis Hanger"
    },
    {
      "key": "mss_sp_58_type",
      "label": "MSS SP-58 Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Type 1 (Adjustable Steel Clevis Hanger)"
    },
    {
      "key": "manufacturer_figure_number",
      "label": "Manufacturer Figure Number",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "Fig. 300"
    },
    {
      "key": "nominal_pipe_tube_size",
      "label": "Nominal Pipe / Tube Size",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": "in",
      "example_format": "NPS 2 (DN 50)"
    },
    {
      "key": "size_basis",
      "label": "Size Basis",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "IPS (steel pipe)"
    },
    {
      "key": "pipe_tube_od",
      "label": "Pipe / Tube OD",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "2.375"
    },
    {
      "key": "hanger_rod_size",
      "label": "Hanger Rod Size",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "3/8 in-16 UNC"
    },
    {
      "key": "maximum_recommended_load",
      "label": "Maximum Recommended Load",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "lb",
      "example_format": "610"
    },
    {
      "key": "material",
      "label": "Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Carbon steel (ASTM A36)"
    },
    {
      "key": "finish_coating",
      "label": "Finish / Coating",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Hot-dip galvanized (ASTM A123)"
    },
    {
      "key": "manufacturer_part_number_mpn",
      "label": "Manufacturer Part Number (MPN)",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "HGR-300-020-HDG"
    },
    {
      "key": "maximum_service_temperature",
      "label": "Maximum Service Temperature",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "°F",
      "example_format": "450"
    },
    {
      "key": "rod_take_out_to",
      "label": "Rod Take-Out (TO)",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "2-5/8"
    },
    {
      "key": "pipe_contact_liner_dielectric_barrier",
      "label": "Pipe Contact Liner / Dielectric Barrier",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "None (uncoated)"
    },
    {
      "key": "fits_insulation_thickness",
      "label": "Fits Insulation Thickness",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "1-1/2"
    },
    {
      "key": "ul_fm_listing_and_scope",
      "label": "UL / FM Listing and Scope",
      "group": "evidence",
      "priority": "channel",
      "value_type": "text",
      "unit": null,
      "example_format": "UL Listed NPS 1/2-8; FM Approved NPS 3/4-8"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "United States"
    },
    {
      "key": "gtin_upc_a",
      "label": "GTIN (UPC-A)",
      "group": "identity",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "614141240036"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Finish / Coating",
      "variants": [
        "Zinc Plated",
        "Electro-Galvanized",
        "EG",
        "Electro Galv",
        "ZP",
        "Zinc Electroplated"
      ],
      "normalized": "Electrogalvanized (ASTM B633)"
    },
    {
      "attribute": "Nominal Size + Size Basis",
      "variants": [
        "1/2\"",
        "1/2 IPS",
        "NPS 1/2",
        "DN15",
        "1/2 in steel pipe",
        "0.840 OD"
      ],
      "normalized": "NPS 1/2 (IPS, 0.840 in OD)"
    },
    {
      "attribute": "Standard Type Number",
      "variants": [
        "Type 1",
        "MSS-58 TY1",
        "SP58 Type 1",
        "WW-H-171E Ty 1",
        "A-A-1192A Type 1",
        "Adj. Clevis"
      ],
      "normalized": "MSS SP-58 Type 1"
    }
  ]
}