{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "camlock-couplings",
 "name": "Camlock (cam and groove) couplings: types A, B, C, D, E, F, DC, DP, 1/2 to 4 in sizes, adapter flange diameter",
 "kind": "standard",
 "category": "Tri-clamp & pipe",
 "group": "Pipe, tube & threads",
 "year": null,
 "question": "What are the camlock types A to F and the dimensions of the adapter?",
 "tags": [
  "camlock",
  "cam and groove",
  "coupling",
  "hose",
  "fitting",
  "quick connect",
  "standard",
  "camera"
 ],
 "aliases": [
  "camlock size chart",
  "type c camlock dimensions",
  "camlock types a b c d e f",
  "camlock dc dp",
  "cam and groove adapter dimensions",
  "camlock flange diameter",
  "a-a-59326",
  "mil-c-27487",
  "en 14420-7",
  "din 2828",
  "camlock thread npt"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/camlock-couplings/",
 "sheet_txt": "https://xemstudio.com/objects/camlock-couplings/sheet.txt",
 "sheet": {
  "basis": "A-A-59326D Table II (flange diameter B), Genebre datasheets 0440 / 0460 / 0470 (cross-check), Pathel catalogue (type definitions); numbers only",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Cam and groove (camlock) couplings are specified in the US by Commercial Item Description A-A-59326D (supersedes MIL-C-27487); it numbers 22 coupling types with Roman numerals. The trade letters used on catalogs and here are: A adapter x female thread, B adapter x male thread, C coupler x hose shank, D coupler x female thread, E adapter x hose shank, F coupler x male thread, DC dust cap (fits a coupler), DP dust plug (fits an adapter).",
   "Adapter (male half) flange diameter is printed in A-A-59326D Table II as dimension B (equal to H); Genebre's datasheet D for the same sizes agrees within 0.3 mm for 3/4 to 4 in, so the number is cross-checked by two sources. The standard's 1/2 in half uses the same body as 3/4 in (1.264 in); Genebre's 1/2 in is a smaller 23.8 mm body.",
   "Threads are NPT unless a spec sheet says otherwise (A-A-59326D); the European range (Pathel) is BSPP for A and D, BSPT for B and F: the thread letter is not the coupling.",
   "Left out, no file: the groove profile of the adapter. Table II lists letters A to K (for 1-1/2 in: A 1.690, B 2.105, C .441, D .13, E .690, F 1.62, J .13, K .58 in), but the figure that says which letter is groove diameter, groove width or lip radius could not be read, so Xem does not publish a revolved adapter. Overall length depends on the type and the hose shank/thread: Genebre's L is listed for E, DC and DP only.",
   "Dust cap and plug have the same flange diameter as the adapter; cap/plug lengths are Genebre's L."
  ],
  "table": {
   "columns": [
    "size (in)",
    "adapter flange dia B (A-A-59326D)",
    "flange dia D (Genebre, mm)",
    "agree",
    "type E adapter length L (mm)",
    "type E shank bore d (mm)",
    "type DC cap length L (mm)",
    "type DP plug length L (mm)"
   ],
   "rows": [
    [
     "1/2",
     "1.264 in (32.11 mm)",
     "23.8",
     "no: Genebre 1/2 in is a smaller body",
     73,
     12,
     37,
     35
    ],
    [
     "3/4",
     "1.264 in (32.11 mm)",
     "32.0",
     "yes (within 0.3 mm)",
     88,
     19,
     44,
     38
    ],
    [
     "1",
     "1.446 in (36.73 mm)",
     "36.7",
     "yes (within 0.3 mm)",
     97,
     25,
     50,
     43
    ],
    [
     "1-1/4",
     "1.792 in (45.52 mm)",
     "45.5",
     "yes (within 0.3 mm)",
     113,
     31,
     59,
     55
    ],
    [
     "1-1/2",
     "2.105 in (53.47 mm)",
     "53.5",
     "yes (within 0.3 mm)",
     118,
     38,
     59,
     55
    ],
    [
     "2",
     "2.484 in (63.09 mm)",
     "63.0",
     "yes (within 0.3 mm)",
     136,
     51,
     66,
     62
    ],
    [
     "2-1/2",
     "2.985 in (75.82 mm)",
     "75.8",
     "yes (within 0.3 mm)",
     140,
     65,
     66,
     62
    ],
    [
     "3",
     "3.604 in (91.54 mm)",
     "91.5",
     "yes (within 0.3 mm)",
     153,
     76,
     71,
     62
    ],
    [
     "4",
     "4.708 in (119.58 mm)",
     "119.5",
     "yes (within 0.3 mm)",
     162,
     100,
     75,
     65
    ]
   ]
  }
 },
 "sheet_text": "Camlock (cam and groove) couplings: types A, B, C, D, E, F, DC, DP, 1/2 to 4 in sizes, adapter flange diameter — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/camlock-couplings/  (sheet CC BY 4.0)\nBasis: A-A-59326D Table II (flange diameter B), Genebre datasheets 0440 / 0460 / 0470 (cross-check), Pathel catalogue (type definitions); numbers only\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Cam and groove (camlock) couplings are specified in the US by Commercial Item Description A-A-59326D (supersedes MIL-C-27487); it numbers 22 coupling types with Roman numerals. The trade letters used on catalogs and here are: A adapter x female thread, B adapter x male thread, C coupler x hose shank, D coupler x female thread, E adapter x hose shank, F coupler x male thread, DC dust cap (fits a coupler), DP dust plug (fits an adapter).\n- Adapter (male half) flange diameter is printed in A-A-59326D Table II as dimension B (equal to H); Genebre's datasheet D for the same sizes agrees within 0.3 mm for 3/4 to 4 in, so the number is cross-checked by two sources. The standard's 1/2 in half uses the same body as 3/4 in (1.264 in); Genebre's 1/2 in is a smaller 23.8 mm body.\n- Threads are NPT unless a spec sheet says otherwise (A-A-59326D); the European range (Pathel) is BSPP for A and D, BSPT for B and F: the thread letter is not the coupling.\n- Left out, no file: the groove profile of the adapter. Table II lists letters A to K (for 1-1/2 in: A 1.690, B 2.105, C .441, D .13, E .690, F 1.62, J .13, K .58 in), but the figure that says which letter is groove diameter, groove width or lip radius could not be read, so Xem does not publish a revolved adapter. Overall length depends on the type and the hose shank/thread: Genebre's L is listed for E, DC and DP only.\n- Dust cap and plug have the same flange diameter as the adapter; cap/plug lengths are Genebre's L.\n\nsize (in)  adapter flange dia B (A-A-59326D)  flange dia D (Genebre, mm)  agree  type E adapter length L (mm)  type E shank bore d (mm)  type DC cap length L (mm)  type DP plug length L (mm)\n1/2  1.264 in (32.11 mm)  23.8  no: Genebre 1/2 in is a smaller body  73  12  37  35\n3/4  1.264 in (32.11 mm)  32.0  yes (within 0.3 mm)  88  19  44  38\n1  1.446 in (36.73 mm)  36.7  yes (within 0.3 mm)  97  25  50  43\n1-1/4  1.792 in (45.52 mm)  45.5  yes (within 0.3 mm)  113  31  59  55\n1-1/2  2.105 in (53.47 mm)  53.5  yes (within 0.3 mm)  118  38  59  55\n2  2.484 in (63.09 mm)  63.0  yes (within 0.3 mm)  136  51  66  62\n2-1/2  2.985 in (75.82 mm)  75.8  yes (within 0.3 mm)  140  65  66  62\n3  3.604 in (91.54 mm)  91.5  yes (within 0.3 mm)  153  76  71  62\n4  4.708 in (119.58 mm)  119.5  yes (within 0.3 mm)  162  100  75  65\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- US DoD / GSA via EverySpec: A-A-59326D Coupling halves, quick-disconnect, cam-locking (Commercial Item Description, 2011) — web — US Government work — https://everyspec.com/COMML_ITEM_DESC/A-A-59000_A-A-59999/A-A-59326D_37598/\n- Genebre: Camlock type E coupling, ref 0440 (D, L, d) — web — Publisher's page; dimensions are facts — https://www.mecafluid.eu/assets/d4ff7275-b858-4b65-a237-f3f31ad5ac46/698511-0440.pdf\n- Genebre: Camlock type DC coupling, ref 0460 (D, L) — web — Publisher's page; dimensions are facts — https://pim.genebre.es/genebre/documents/fichas_tecnicas/0460.pdf\n- Genebre: Camlock type DP coupling, ref 0470 (D, L) — web — Publisher's page; dimensions are facts — https://www.mecafluid.eu/assets/044cc84b-56ea-436a-be24-0831d4f9405c/698541-0470.pdf\n- Pathel: Camlock catalogue 2021 (types, threads) — web — Publisher's page; dimensions are facts — https://www.pathel.com/wp-content/uploads/2018/06/Camlock-catalogue-Pathel-2021.pdf\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=camlock-couplings\n",
 "sources": [
  {
   "publisher": "US DoD / GSA via EverySpec",
   "title": "A-A-59326D Coupling halves, quick-disconnect, cam-locking (Commercial Item Description, 2011)",
   "url": "https://everyspec.com/COMML_ITEM_DESC/A-A-59000_A-A-59999/A-A-59326D_37598/",
   "formats": [
    "web"
   ],
   "license": "US Government work",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Genebre",
   "title": "Camlock type E coupling, ref 0440 (D, L, d)",
   "url": "https://www.mecafluid.eu/assets/d4ff7275-b858-4b65-a237-f3f31ad5ac46/698511-0440.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Genebre",
   "title": "Camlock type DC coupling, ref 0460 (D, L)",
   "url": "https://pim.genebre.es/genebre/documents/fichas_tecnicas/0460.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Genebre",
   "title": "Camlock type DP coupling, ref 0470 (D, L)",
   "url": "https://www.mecafluid.eu/assets/044cc84b-56ea-436a-be24-0831d4f9405c/698541-0470.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Pathel",
   "title": "Camlock catalogue 2021 (types, threads)",
   "url": "https://www.pathel.com/wp-content/uploads/2018/06/Camlock-catalogue-Pathel-2021.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "hose-barbs",
  "npt-thread-envelopes",
  "bsp-thread-envelopes",
  "tri-clamp-hose-barb-adapters",
  "garden-hose-thread"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What are the camlock types?",
   "a": "A adapter x female thread, B adapter x male thread, C coupler x hose shank, D coupler x female thread, E adapter x hose shank, F coupler x male thread, DC cap, DP plug."
  },
  {
   "q": "What is the OD of a 2 in camlock adapter?",
   "a": "Flange diameter 2.484 in (63.1 mm) per A-A-59326D Table II; Genebre prints 63.0 mm."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/camlock-couplings/index.md"
}