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  1. Home
  2. Tap Extensions
  3. NPT

NPT

Diagram: Pipe (NPT) Tap Extension

Tap Size

Dimensions in Inches

Pipe
(NPT)

A

B

C

DEExtension Length
Maximum
Extension
Diameter
Min & Max
Tap Shank
Accepted
Min & Max
Tap Square
Accepted
Length
of Small
Shank of
Extension
Diameter
of Small
Shank of
Extension
       4"      
       6"      
        8"      
      12"     

1/16"

.437

.310 to .312

.230 to .234
2.125
.312
2014
2016
2018
2020

1/8"

.625

.430 to .437

.324 to .328
2.125
.437
2024
2026
2028
2030

1/4"

.750

.555 to .562

.415 to .421
2.125
.562
2034
2036
2038
2040

3/8"

.875

.693 to .700

.525 to .531
2.125
.700
2044
2046
2048
2050

1/2"

.875

.680 to .687

.509 to .515
2.125
.687
2054
2056
2058
2060

3/4"

1.125

.897 to .906

.673 to .679
2.125
.906
2064
2066
2068
2070

1"

1.312

1.116 to .1.125

.835 to .843
2.125
1.125
2074
2076
2078
2080

1-1/4"

1.500

1.2225 to 1.3125

.976 to .984
2.125
1.3125
2094
2096
2098
3010

1-1/2"

1.750

1.491 to 1.500

1.117 to 1.125
2.125
1.500
3014
3016
3018
3120

*Tap Shank & Tap Square must match column B & C dimensions.

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Products [36]

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Self-Locking Tap Extension: 1/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/16" NPT, 4" Length
$56.58
In Stock
(0)
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Self-Locking Tap Extension: 1/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/16" NPT, 6" Length
$60.40
In Stock
(0)
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Self-Locking Tap Extension: 1/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/16" NPT, 8" Length
$64.26
In Stock
(0)
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Self-Locking Tap Extension: 1/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/16" NPT, 12" Length
$71.93
In Stock
(0)
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Self-Locking Tap Extension: 1/8
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/8" NPT, 4" Length
$65.61
In Stock
(0)
Add to Cart
Self-Locking Tap Extension: 1/8
Tap Associates - Self-Locking "Jungere" Tap Extension: 1/8" NPT, 6" Length
$69.09
In Stock
(1)
Add to Cart
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