{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Graph Tech PT-6642-00 - Black TUSQ XL 42mm Slotted Nut",
    "brand": "Graph Tech",
    "model": "PT-6642-00",
    "mpn": "PT-6642-00",
    "gtins": null,
    "handle": "ca-graph-tech-graph-tech-pt-6642-00-black-tusq-xl-42mm-slo-a04b879c69",
    "url": "https://envoy-music.myshopify.com/products/ca-graph-tech-graph-tech-pt-6642-00-black-tusq-xl-42mm-slo-a04b879c69",
    "catalog_product_id": "catalog:f2d257b927cc",
    "lane": "parts",
    "product_object": "guitar nut"
  },
  "offer": {
    "price": 19.99,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "mid",
    "source_verified_at": "2026-07-10T23:56:53Z"
  },
  "specifications": {"material":"Black TUSQ XL, permanently lubricated","dimensions":"42.05 mm long x 6.00 mm thick x 7.69 mm high","outer_string_spacing":"34.26 mm","mounting_format":"pre-slotted, flat bottom","compatibility":"six-string electric guitar; exact nut-slot and instrument geometry must match","package_quantity":"1 nut","instrument_family":"guitar","category":"parts","subcategory":"parts","category_path":"parts"},
  "connectivity": null,
  "power": null,
  "included_items": ["one PT-6642-00 Black TUSQ XL pre-slotted nut"],
  "required_accessories": [],
  "optional_accessories": [],
  "compatibility": ["six-string electric guitars requiring a flat-bottom nut approximately 42.05 mm long, 6.00 mm thick, 7.69 mm high, and 34.26 mm from outer string to outer string; final fit must be verified on the instrument"],
  "advisor": {
    "best_for": "Six-string electric-guitar repairs or upgrades that specifically require the black, permanently lubricated TUSQ XL material and published PT-6642-00 geometry.",
    "who_should_skip": "Skip it until the existing nut slot, length, thickness, height, outer-string spacing, fingerboard geometry, and string gauge have been measured.",
    "fit_notes": "Best for replacing or upgrading a six-string electric-guitar nut when the published dimensions, flat-bottom geometry, and outer-string spacing match the instrument.",
    "watchouts": "Pre-slotted does not guarantee drop-in fit. Final shaping or slot adjustment may be required, and installation tools or materials depend on the instrument and fit assessment.",
    "verification_questions": ["Do the nut-slot length, thickness, height, and flat-bottom geometry match the published PT-6642-00 dimensions?","Does the 34.26 mm outer-string spacing suit the intended string layout?","What final shaping, slot adjustment, tools, and installation materials are required for this instrument?","Is the exact Next Gen Musical offer still available at the displayed CAD price?"]
  },
  "retrieval": {
    "summary": "Graph Tech PT-6642-00 is the Black TUSQ XL version of the 6642-00 nut. It is a pre-slotted, flat-bottom replacement or upgrade for a six-string electric guitar, measuring 42.05 x 6.00 x 7.69 mm with 34.26 mm outer-string spacing. Pre-slotted does not mean universal or drop-in: compare the exact slot, dimensions, fingerboard geometry, string gauge, and final shaping needs with the destination instrument before installation. Envoy Music does not stock or fulfill this external reference.",
    "agent_summary": "Graph Tech PT-6642-00 is a black, permanently lubricated TUSQ XL replacement nut for six-string electric guitars, pre-slotted with a flat bottom and 42.05 mm length.",
    "intent_terms": ["replace electric guitar nut","black lubricated guitar nut","42 mm flat bottom nut","pre-slotted six string nut"],
    "use_cases": ["replace a worn or unsuitable nut on a dimensionally compatible six-string electric guitar","upgrade to Graph Tech Black TUSQ XL material when the fit geometry matches"],
    "skill_level": "any"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"external_inventory":true,"source_availability":true,"source_price":true,"source_url":true,"structured_specs":false},
    "spec_provenance": null
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:parts","verified retail listing_reference"]
}
}