RecursosBibliotecas de símbolos DWGO-rings, ISO 3601
Cross-section 1.78 mm
O-rings, ISO 3601: Cross-section 1.78 mm: 47 ready-made AutoCAD blocks (DWG), free to download and use in your own projects, as a ZIP or one symbol at a time.
47 O-rings of 1.78 mm cross-section, size codes 004 to 050: the smallest rings, for small valves, fittings and instruments.
Version 1.0 · updated 17 de outubro de 2026
Using AutoCAD 2017 or an earlier version? Download the 2010 format
Free to use and modify in your own projects, including commercial ones. The ZIP holds one plain DWG file in AutoCAD 2018 format and a README; no add-in needed. Provided as is, without warranty.
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All 47 symbols
47 de 47 símbolos
O-ring 1.78 x 1.78
ORG_004Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 2.57 x 1.78
ORG_005Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 2.90 x 1.78
ORG_006Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 3.68 x 1.78
ORG_007Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 4.47 x 1.78
ORG_008Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 5.28 x 1.78
ORG_009Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 6.07 x 1.78
ORG_010Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 7.65 x 1.78
ORG_011Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 9.25 x 1.78
ORG_012Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 10.82 x 1.78
ORG_013Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 12.42 x 1.78
ORG_014Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 14.00 x 1.78
ORG_015Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 15.60 x 1.78
ORG_016Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 17.17 x 1.78
ORG_017Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 18.77 x 1.78
ORG_018Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 20.35 x 1.78
ORG_019Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 21.95 x 1.78
ORG_020Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 23.52 x 1.78
ORG_021Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 25.12 x 1.78
ORG_022Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 26.70 x 1.78
ORG_023Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 28.30 x 1.78
ORG_024Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 29.87 x 1.78
ORG_025Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 31.47 x 1.78
ORG_026Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 33.05 x 1.78
ORG_027Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 34.65 x 1.78
ORG_028Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 37.82 x 1.78
ORG_029Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 41.00 x 1.78
ORG_030Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 44.17 x 1.78
ORG_031Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 47.35 x 1.78
ORG_032Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 50.52 x 1.78
ORG_033Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 53.70 x 1.78
ORG_034Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 56.87 x 1.78
ORG_035Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 60.05 x 1.78
ORG_036Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 63.22 x 1.78
ORG_037Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 66.40 x 1.78
ORG_038Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 69.57 x 1.78
ORG_039Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 72.75 x 1.78
ORG_040Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 75.92 x 1.78
ORG_041Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 82.27 x 1.78
ORG_042Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 88.62 x 1.78
ORG_043Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 94.97 x 1.78
ORG_044Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 101.32 x 1.78
ORG_045Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 107.67 x 1.78
ORG_046Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 114.02 x 1.78
ORG_047Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 120.37 x 1.78
ORG_048Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 126.72 x 1.78
ORG_049Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
O-ring 133.07 x 1.78
ORG_050Atributos
DESIGNATIONSIZE_CODEID_MMCS_MMSTANDARDMATERIALHARDNESS_IRHDPART_NOMANUFACTURERQTYREMARKSDESC
Faltou um símbolo? Diga qual.
Attributes for parts lists
Each block has the designation as a visible attribute (for example O-ring 29.87 x 3.53). The invisible attributes are SIZE_CODE, ID_MM, CS_MM, STANDARD, MATERIAL, HARDNESS_IRHD, PART_NO, MANUFACTURER, QTY and REMARKS. The size code, inside diameter and cross-section are already filled in; set the material and hardness to what you order.
Export the O-rings of an assembly drawing to Excel with BlockSync to get a parts list with size, material and quantity, and write corrections back in one run, with preview and backup.
How to use the library
- Unzip the file and open the DWG. Copy the symbols you need into your plan, or drag the blocks in from DesignCenter (ADCENTER).
- The rings are drawn at real size, 1 drawing unit = 1 mm: the inside circle is the inside diameter and the outside circle is the inside diameter plus twice the cross-section. Insert them at scale 1. Small rings are drawn small; the catalog sheet enlarges them only so that you can see them.
- The insertion point is the centre of the ring. The end view is on the left and the cut cross-section, two circles of the cross-section diameter above and below the centre line, is on the right, so you can use the same block in a plan view and in a section view. Explode the block and keep the view you need.
- The five libraries differ only by cross-section, so take the library of the cross-section you need and look up the size by its code or by its inside diameter. The block name is ORG_ followed by the size code, for example ORG_210.