Heyco Plugs Threaded Vent Plugs
Threaded Vent Plugs

Material: Nylon 6/6 bodies with UL (f1) rating

Flammability Range: 94V-2

Material Temp Index: -40°F to 221°F (-40°C to 105°C)

 
  • Permit the passage of air for ventilation and heat dissipation.
  • Quick and easy installation into Threaded Holes.
  • All sizes and types feature seven (7) .094" (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 221°F (105°C).
  • Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
  • Hex shaped head for wrench installation.
  • Constructed of electrically non-conductive Nylon 6/6.
  • Also available: Liquid Tight Threaded Vent Plugs
Heyco® Threaded Vent Plugs
Open Vent Holes Only
Thread Type
and Size
Part Number Description Part Dimensions
A
Wrenching Flats
B
Overall Height
Color
Black Gray in. mm. in. mm.
NPT
NPT 1/4   3551B 3551 TVP NPT 1/4   .63 16,0 .66 16,8
NPT 3/8 3552B 3552 TVP NPT 3/8   .83 21,1 .69 17,5
NPT 1/2 3553B 3553 TVP NPT 1/2   .98 24,9 .81 20,6
NPT 3/4 3554B 3554 TVP NPT 3/4 1.29 32,8 .86 21,8
PG
PG 7 3566B 3566 TVP PG 7   .63 16,0 .53 13,5
PG 9 3567B 3567 TVP PG 9   .83 21,1
PG 13.5 3568B 3568 TVP PG 13.5   .98 24,9 .62 15,8
PG 21 3569B 3569 TVP PG 21 1.29 32,8 .76 19,3
Metric
M12 3557B 3557 TVP M12   .63 16,0 .53 13,5
M16 3558B 3558 TVP M16   .83 21,1
M20 3559B 3559 TVP M20   .98 24,9 .62 15,8