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HEYCap™ Tapered Caps and Plugs - NPT

For NPT Fitting Hubs and Threaded Mounting Holes

  • Part Numbers and Specifications
  • Features
Fits This
NPT HUB
or Mounting
Hole
PART
NO.
Red
DESCRIPTION PART DIMENSIONS
A - Major B - Minor C
Head Diameter
D
Depth
Body Diameters
in. mm. in. mm. in. mm. in. mm.

HEYCap Tapered Caps* for NPT Fitting Hubs - Body Diameters reference Inside

1/8 G5014 TCP 49-42† .42 10,7 .36 9,0 .63 16,0 .38 9,7
1/4 G5020 TCP 61-55 .55 13,8 .47 11,9 .75 19,1 .44 11,2
3/8 G5027 TCP 76-69 .69 17,6 .61 15,6 .88 22,4 .50 12,7
1/2 G5035 TCP 91-85 .85 21,6 .74 18,8 1.06 26,9 .63 16,0
3/4 G5047 TCP 115-108 1.08 27,5 .93 23,7 1.31 33,3 .75 19,1
1 G5057 TCP 136-130 1.30 33,0 1.17 29,8 1.50 38,1 .81 20,6
1-1/4 G5071 TCP 168-162 1.62 41,1 1.50 38,0 1.88 47,8 .75 19,1
1-1/2 G5080 TCP 195-189 1.89 48,0 1.72 43,6 2.13 54,1 1.00 25,4
2 G5096 TCP 246-240 2.40 61,0 2.24 56,8 2.63 66,8
2-1/2 G5110 TCP 299-295 2.95 74,9 2.69 68,2 3.13 79,5
3 G5116 TCP 356-349 3.49 88,7 3.20 81,3 3.69 93,7 1.13 28,7

HEYCap Tapered Plugs** for NPT Threaded Mounting Holes - Body Diameters reference Outside

1/8 G5011 TCP 40-33 .40 10,1 .33 8,4 .53 13,5 .38 9,7
1/4 G5014 TCP 46-42† .49 12,4 .42 10,7 .63 16,0
3/8 G5022 TCP 63-57 .63 16,0 .55 14,0 .75 19,1 .47 11,9
1/2 G5029 TCP 79-73 .79 20,1 .69 17,5 .94 23,9 .56 14,2
3/4 G5040 TCP 104-98 1.04 26,4 .92 23,4 1.16 29,5 .69 17,5
1 G5048 TCP 122-115 1.22 31,0 1.09 27,7 1.41 35,8 .75 19,1
1-1/4 G5068 TCP 160-154 1.60 40,6 1.51 38,4 1.75 44,5 .50 12,7
1-1/2 G5075 TCP 181-175 1.81 46,0 1.78 45,2 2.00 50,8 .38 9,7
2 G5090 TCP 226-220 2.26 57,4 2.23 56,6 2.50 63,5 .50 12,7
2-1/2 G5106 TCP 279-273 2.79 70,9 2.64 67,1 2.94 74,7 .75 19,1
3 G5115 TCP 346-338 3.46 87,9 3.33 84,6 3.63 92,2

*May also be used as Plugs: to determine Outside Diameters, add approximately .06˝ (1,5 mm) to Inside Diameter dimensions.
**May also be used as Caps: to determine Inside Diameters, subtract approximately .06˝ (1,5 mm) from Outside Diameter dimensions.
† Part No. G5014 functions as a Cap for NPT 1/8˝ Hubs and a Plug for NPT 1/4˝ Hubs.
Standard color red.

  • HEYCaps can be used as either caps or plugs.
  • Because they are tapered in design and made from highly flexible polyethylene, they not only fit snugly but are readily removable.
  • Applicable Specs: MIL-C-5501/7 (MIL-C-52078), NAS-835.

CAPS:

  • Especially recommended for use on threaded external NPT fitting hubs.
  • Part dimensions are based on average threaded hub fit. Before ordering in quantity, please sample HEYCaps.
  • Recommended Closures: Threaded hubs where Cap dimension B is at least 1% smaller than the hub to be capped. Minimum .020" (0,5 mm).

PLUGS:

  • Especially recommended for use on threaded internal NPT fittings and mounting holes.
  • Part dimensions are based on average tapped hole fit. Before ordering in quantity, please sample HEYCap Tapered Plugs.
  • Recommended Closures: Threaded mounting holes where Plug dimension A is at least 1% larger than the hole to be plugged. Minimum .020" (0,5 mm).

QuickSpecs

Material LDPE
Standard Color: Red
Temperature Range -94°F (-70°C) to 150°F (66°C)
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