Heyco Vented Plugs

Heyco - Vented Plugs

Supplier: NPA

Filter Insert Vent Plugs

Filter Insert Louvered Vent Plugs

Threaded Vent Plugs

Liquid Tight Threaded Vent Plugs

Liquid Tight Snap-In Vent Plugs

1/5

Vented Plugs permit the passage of air for ventilation but limit liquid as well as dust and pest infiltration. Push-in, threaded & filtered varieties available.

Limit liquid as well as dust and pests

In Stock

HEYClean™ Filter Insert Vent Plugs
Mounting Hole Diameter Range: 12.7 mm to 76.2 mm

Filter inserts permit the passage of air for ventilation but limit liquid as well as dust and pest infiltration.
Polyurethane foam filter will filter particle sizes 30 micron and larger.
Filter is captive in body of vent plug and uses no additional real estate inside.
Also available without foam filter.

Material: Nylon 6/6
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

HEYClean™ Filter Insert Louvered Plugs
Mounting Hole Diameter Range 22.2 mm to 76.2 mm

Located behind the louvers, filter inserts permit the passage of air for ventilation but limit liquid as well as dust and pest infiltration.
Polyurethane foam filter will filter particle sizes 30 micron and larger.
Also available without foam filter.

Material: Nylon 6/6
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

Threaded Vent Plugs

Permit the passage of air for ventilation and heat dissipation.
Quick and easy installation into Threaded Holes.
For multiple thread sizes and types.
All sizes and types feature six (6) 2.4 mm diameter vent holes.
Threaded plugs for hydraulic and pneumatic applications.
Lower cost option over brass or steel plugs.
Non-corrosive-resist salt water, weak acids, gasoline, alcohol, oil, grease and common solvents. Resist oil and heat up to 105°C.
Approximate Head Thickness: 5.3 mm. Thickness may vary.
Hex shaped head for wrench installation.
Electrically non-conductive Nylon 6/6.

Material: Nylon 6/6 bodies with UL (f1) rating
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

Liquid Tight Threaded Vent Plugs

With Integral Sealing Ring and Liquid Tight Filter

Integral sealing ring ensures a superior seal at mounting hole location,
every time; IP 65, 67 and 68 Rated.
Allow the passage of air for pressure equalization, yet prevent moisture intrusion, remain liquid tight.
UL Rated for Type NEMA 3R, 4 and 4X applications.
Filter membrane is both hydrophobic and oleophobic and prevents moisture and particulate contamination in electronic enclosures.
Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling.
Quick and easy installation into Threaded (LTTVP) and Clearance (LTSV) Holes.
Membrane seal is ultrasonically welded to nylon body.
Lower cost option over metal or steel plugs.
Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
Hex shaped head for wrench installation (LTTVP only).
Electrically non-conductive Nylon 6/6.
Quick and easy Snap-in installation into Clearance Holes.
All sizes and types feature 6 (six) vent holes.
Snap-In plugs for panel and housing applications.
Lower cost option over brass or steel plugs.
Snap into a range of panel thicknesses up to .125" (3,2 mm) with no tools (LTSV only).

Material: Nylon 6/6 bodies with an Acrylic Copolymer Filter
Certifications: CRUUS Recognized under the Component Program of Underwriters' Laboratories, File E330194 to both Canadian and U.S. Requirements
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C
IP Rating: IP 65/67/68

-------------------------------------

Liquid Tight Snap-In Vent Plugs

Integral sealing ring ensures a superior seal at mounting hole location, every time; IP 65, 67 and 68 Rated.
Allow the passage of air for ventilation and heat dissipation, yet prevent moisture intrusion, remain liquid tight.
UL Rated for Type NEMA 3R, 4 and 4X applications.
Filter membrane is both hydrophobic and oleophobic and prevents moisture and particulate contamination in electronic enclosures.
Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling.
Quick and easy installation into Threaded (LTTVP) and Clearance (LTSV) Holes.
Membrane seal is ultrasonically welded to nylon body.
Lower cost option over metal or steel plugs.
Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
Hex shaped head for wrench installation (LTTVP only).
Electrically non-conductive Nylon 6/6.
Quick and easy Snap-in installation into Clearance Holes.
All sizes and types feature 6 (six) vent holes.
Snap-In plugs for panel and housing applications.
Lower cost option over brass or steel plugs.
Snap into a range of panel thicknesses up to .125" (3,2 mm) with no tools (LTSV only).

To contact NPA about Heyco Vented Plugs use Get a quote.

HEYClean™ Filter Insert Vent Plugs
Mounting Hole Diameter Range: 12.7 mm to 76.2 mm

Filter inserts permit the passage of air for ventilation but limit liquid as well as dust and pest infiltration.
Polyurethane foam filter will filter particle sizes 30 micron and larger.
Filter is captive in body of vent plug and uses no additional real estate inside.
Also available without foam filter.

Material: Nylon 6/6
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

HEYClean™ Filter Insert Louvered Plugs
Mounting Hole Diameter Range 22.2 mm to 76.2 mm

Located behind the louvers, filter inserts permit the passage of air for ventilation but limit liquid as well as dust and pest infiltration.
Polyurethane foam filter will filter particle sizes 30 micron and larger.
Also available without foam filter.

Material: Nylon 6/6
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

Threaded Vent Plugs

Permit the passage of air for ventilation and heat dissipation.
Quick and easy installation into Threaded Holes.
For multiple thread sizes and types.
All sizes and types feature six (6) 2.4 mm diameter vent holes.
Threaded plugs for hydraulic and pneumatic applications.
Lower cost option over brass or steel plugs.
Non-corrosive-resist salt water, weak acids, gasoline, alcohol, oil, grease and common solvents. Resist oil and heat up to 105°C.
Approximate Head Thickness: 5.3 mm. Thickness may vary.
Hex shaped head for wrench installation.
Electrically non-conductive Nylon 6/6.

Material: Nylon 6/6 bodies with UL (f1) rating
Flammability Rating: 94V-2
Temperature Range: -40°C to 105°C

-------------------------------------

Liquid Tight Threaded Vent Plugs

With Integral Sealing Ring and Liquid Tight Filter

Integral sealing ring ensures a superior seal at mounting hole location,
every time; IP 65, 67 and 68 Rated.
Allow the passage of air for pressure equalization, yet prevent moisture intrusion, remain liquid tight.
UL Rated for Type NEMA 3R, 4 and 4X applications.
Filter membrane is both hydrophobic and oleophobic and prevents moisture and particulate contamination in electronic enclosures.
Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling.
Quick and easy installation into Threaded (LTTVP) and Clearance (LTSV) Holes.
Membrane seal is ultrasonically welded to nylon body.
Lower cost option over metal or steel plugs.
Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
Hex shaped head for wrench installation (LTTVP only).
Electrically non-conductive Nylon 6/6.
Quick and easy Snap-in installation into Clearance Holes.
All sizes and types feature 6 (six) vent holes.
Snap-In plugs for panel and housing applications.
Lower cost option over brass or steel plugs.
Snap into a range of panel thicknesses up to .125" (3,2 mm) with no tools (LTSV only).

-------------------------------------

Liquid Tight Snap-In Vent Plugs

Integral sealing ring ensures a superior seal at mounting hole location, every time; IP 65, 67 and 68 Rated.
Allow the passage of air for ventilation and heat dissipation, yet prevent moisture intrusion, remain liquid tight.
UL Rated for Type NEMA 3R, 4 and 4X applications.
Filter membrane is both hydrophobic and oleophobic and prevents moisture and particulate contamination in electronic enclosures.
Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling.
Quick and easy installation into Threaded (LTTVP) and Clearance (LTSV) Holes.
Membrane seal is ultrasonically welded to nylon body.
Lower cost option over metal or steel plugs.
Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
Hex shaped head for wrench installation (LTTVP only).
Electrically non-conductive Nylon 6/6.
Quick and easy Snap-in installation into Clearance Holes.
All sizes and types feature 6 (six) vent holes.
Snap-In plugs for panel and housing applications.
Lower cost option over brass or steel plugs.
Snap into a range of panel thicknesses up to .125" (3,2 mm) with no tools (LTSV only).

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To contact NPA about Heyco Vented Plugs use Get a quote.

AI Overview BETA

Heyco Vented Plugs are nylon components that allow airflow for ventilation, heat dissipation or pressure equalisation while limiting liquid, dust and pest entry. On liquid-tight models, a hydrophobic and oleophobic membrane lets air pass while blocking moisture and particulate contamination in electronic enclosures. Threaded versions suit hydraulic and pneumatic applications, while snap-in types fit panels and housings.

HEYClean foam filters particles measuring 30 micron and larger
Liquid-tight models carry an IP68 rating
Threaded plugs have six vent holes, each 2.4 mm in diameter
HEYClean insert plugs: 12.7–76.2 mm mounting holes; louvered plugs: 22.2–76.2 mm
Operating temperature: -40°C to 105°C

Source: listing by NPA on IndustrySearch · Updated 1 Nov 2026

AI Overview is generated by artificial intelligence and may contain mistakes.

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