PA66 Nylon vent plug comes with IP67 waterproof, dustproof, hydrophobic, breathable, and heat dissipation functions and M10, M12, M16~M40 thread sizes. 3 different colors (white/gray/black) plastic air vent plugs can be selected.
Specifications
- Model: ATO-MS-SL-PA66
- Material: PA66
- Temperature Resistance: -40℃ to 125℃
- Moisture Permeability: >5000g/24H.M2
- Hydrostatic Pressure Resistance: ≥100mbar for 30min
- Protection Level: IP67
- Features: Dustproof, Hydrophobic, Breathable, Heat Dissipation
- Color: White, Gray, Black
Dimension (Unit: mm)

Details
Specifications |
Air Permeability |
Thread Length |
Total Length |
Thread Diameter |
Wrench Diameter |
M5x0.8-7 |
≥600ml/min/@70mbar |
7mm |
13mm |
5mm |
12mm |
M6x1.0-7 |
≥600ml/min/@70mbar |
7mm |
13mm |
6mm |
12mm |
M8x1.25-10 |
≥1500ml/min/@70mbar |
10mm |
18mm |
8mm |
17mn |
M10x1.5-10 |
≥1500ml/min/@70nbar |
10mm |
18mm |
10nm |
17nm |
M12x1.0-10 |
≥1500ml/min/@70mbar |
10mm |
16mm |
12nm |
16nm |
M12x1.5-10 |
≥1500ml/min/@70mbar |
10mm |
16mm |
12mm |
16mm |
M16x1.5-10 |
≥4000ml/min/@70mbar |
10mm |
18mm |
16mm |
22mm |
M20x1.5-10 |
≥4500ml/min/@70mbar |
10mm |
18mm |
20mn |
27mm |
M24x1.5-15 |
≥7000ml/min/@70mbar |
15mm |
24mm |
24mm |
36mm |
M32x1.5-15 |
≥8000ml/min/@70mbar |
15mm |
25mm |
32mm |
45mm |
M40x1.5-15 |
≥8500ml/min/@70mbar |
15mm |
24mm |
40mm |
56mm |
Applications
ATO air vent plugs can be widely used in battery packs and battery boxes of base station equipment, new energy electric vehicles, hybrid vehicles, the solar energy industry, high-power energy storage equipment, and various outdoor electrical equipment products.

Tips: What is a breather vent plug?
A breather vent plug is a small device installed on machinery or equipment, such as gearboxes, differentials, or fuel tanks, to allow air to flow in and out while preventing contaminants like dust, dirt, and moisture from entering. Its main function is to balance internal pressure caused by temperature changes or fluid movement, avoiding vacuum or pressure build-up that could damage seals or cause leaks. By maintaining proper ventilation, the breather vent plug helps ensure the equipment operates smoothly and extends its service life.