| Material | Admiralty Brass | |
|---|---|---|
| Type | Admiralty Brass | |
| No. of Fins/Waves | 28 Fins per Inch | |
| Part Number | 285042 | |
| Fin Height | 0.035 in | 0.889 mm |
| Plain Section Average Diameter | 0.75 in | 19.05 mm |
| Plain Section Average Wall | 0.065 in | 1.651 mm |
| Wall Under Fin Average | 0.042 in | 1.067 mm |
| Wall Under Fin Minimum | 0.037 in | 0.94 mm |
| Nominal Root Diameter | 0.68 in | 17.272 mm |
| Fin Section I.D. | 0.596 in | 15.138 mm |
| Outside Area Ao | 0.501 ft²/ft | 0.153 m²/m |
| Inside Area Ai | 0.156 ft²/ft | 0.048 m²/m |
| Area Ratio Ao/Ai | 3.212 | |
| I.D. Cross Section Area | 0.279 in² | 1.8 cm² |