Library › Hardware › O-rings, common metric sizes

O-ring 20 × 2.62 mm (ID × cross-section), OD 25.24 mm, true size

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

cross_section_mm	2.62
groove_depth_mm	2.0
groove_width_mm	3.5

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From the full sheet

O-rings, common metric sizes (ISO 3601): every size, notes, mating features and sources. How do I size an O-ring groove for a 3D-printed lid?

Other sizes

O-ring 5 × 1.5 mm (ID × cross-section), OD 8 mm, true size
O-ring 10 × 1.5 mm (ID × cross-section), OD 13 mm, true size
O-ring 20 × 1.5 mm (ID × cross-section), OD 23 mm, true size
O-ring 30 × 1.5 mm (ID × cross-section), OD 33 mm, true size
O-ring 50 × 1.5 mm (ID × cross-section), OD 53 mm, true size
O-ring 5 × 1.78 mm (ID × cross-section), OD 8.56 mm, true size
O-ring 10 × 1.78 mm (ID × cross-section), OD 13.56 mm, true size
O-ring 20 × 1.78 mm (ID × cross-section), OD 23.56 mm, true size
O-ring 30 × 1.78 mm (ID × cross-section), OD 33.56 mm, true size
O-ring 50 × 1.78 mm (ID × cross-section), OD 53.56 mm, true size
O-ring 5 × 2 mm (ID × cross-section), OD 9 mm, true size
O-ring 10 × 2 mm (ID × cross-section), OD 14 mm, true size
O-ring 20 × 2 mm (ID × cross-section), OD 24 mm, true size
O-ring 30 × 2 mm (ID × cross-section), OD 34 mm, true size
O-ring 50 × 2 mm (ID × cross-section), OD 54 mm, true size
O-ring 5 × 2.4 mm (ID × cross-section), OD 9.8 mm, true size
O-ring 10 × 2.4 mm (ID × cross-section), OD 14.8 mm, true size
O-ring 20 × 2.4 mm (ID × cross-section), OD 24.8 mm, true size
O-ring 30 × 2.4 mm (ID × cross-section), OD 34.8 mm, true size
O-ring 50 × 2.4 mm (ID × cross-section), OD 54.8 mm, true size
O-ring 5 × 2.62 mm (ID × cross-section), OD 10.24 mm, true size
O-ring 10 × 2.62 mm (ID × cross-section), OD 15.24 mm, true size
O-ring 30 × 2.62 mm (ID × cross-section), OD 35.24 mm, true size
O-ring 50 × 2.62 mm (ID × cross-section), OD 55.24 mm, true size
O-ring 5 × 3 mm (ID × cross-section), OD 11 mm, true size
O-ring 10 × 3 mm (ID × cross-section), OD 16 mm, true size
O-ring 20 × 3 mm (ID × cross-section), OD 26 mm, true size
O-ring 30 × 3 mm (ID × cross-section), OD 36 mm, true size
O-ring 50 × 3 mm (ID × cross-section), OD 56 mm, true size
O-ring 5 × 3.53 mm (ID × cross-section), OD 12.06 mm, true size
O-ring 10 × 3.53 mm (ID × cross-section), OD 17.06 mm, true size
O-ring 20 × 3.53 mm (ID × cross-section), OD 27.06 mm, true size
O-ring 30 × 3.53 mm (ID × cross-section), OD 37.06 mm, true size
O-ring 50 × 3.53 mm (ID × cross-section), OD 57.06 mm, true size