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Threaded Protection Plugs - NPT Threads

In stock

Threaded Protection plugs for NPT threads are used to protect NPT threads against contaminants and moisture. The square head design allows the user to install or remove these by hand or with a wrench. Parts come in HDPE for everyday applications or in nylon, which is recommended when abrasion or heat are involved.

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Filter or Search Variants

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Product SKUs information
Item Code Price range Availability Compatible Thread Sizes (All) Quick View
R1/4C
$0.0838 - $1.0467 9030 In stock
1/4-18
R1-1/2C
$1.0615 - $14.0326 3337 In stock
1-1/2-11-1/2
R1B
$0.2981 - $3.9471 1009 In stock
1-11-1/2
R3/8A
$0.0834 - $1.1041 10000 In stock
3/8-18
R1/2D
$0.1511 - $1.8919 In production
1/2-14
R1/8C
$0.1111 - $1.47 In production
1/8-27
R1-1/4C
$0.4655 - $6.1656 In production
1-1/4-11-1/2
R3/4A
$0.1447 - $1.8079 19043 In stock
3/4-14
R1/4A
$0.0529 - $0.6612 65892 In stock
1/4-18
R1-1/2A
$0.3764 - $4.9817 In production
1-1/2-11-1/2
R1A
$0.2028 - $2.6731 18876 In stock
1-11-1/2
R3/4B
$0.2287 - $2.8718 1548 In stock
3/4-14
R1/2A
$0.0908 - $1.201 42360 In stock
1/2-14
R1/8A
$0.0463 - $0.6134 8500 In stock
1/8-27
R1-1/4A
$0.3164 - $4.1839 1639 In stock
1-1/4-11-1/2
R2A
$0.4267 - $5.6574 In production
2-11-1/2
R3/8B
$0.1318 - $1.7422 5063 In stock
3/8-18
PFP1/4C
$0.1479 - $1.9479 10476 In stock
1/4-18
PFP1C
$0.4337 - $5.7582 1950 In stock
1-11-1/2
PFP3/8C
$0.1863 - $2.4739 64950 In stock
3/8-18
PFP1/2A
$0.1251 - $1.6562 7085 In stock
1/2-14
PFP1/8A
$0.0867 - $1.1448 2576 In stock
1/8-27
PFP3/4A
$0.1617 - $2.1332 18793 In stock
3/4-14
PFP1/2C
$0.2332 - $3.0853 In production
1/2-14
PFP1/8C
$0.1322 - $1.7489 5905 In stock
1/8-27
  • of 2
Threaded Protection Plug - 0.343 in ; 1/4-18 ; Nylon ; Natural

R1/4C

Price Range
$1.0467 - $0.0838

Stock Levels
9030 In stock
Attributes
  • Overall Diameter
    0.343 in
  • Overall Height
    0.687 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/4-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.124 in ; 1-1/2-11-1/2 ; Nylon ; Natural

R1-1/2C

Price Range
$14.0326 - $1.0615

Stock Levels
3337 In stock
Attributes
  • Overall Diameter
    1.124 in
  • Overall Height
    0.875 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1-1/2-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.750 in ; 1-11-1/2 ; Nylon ; Natural

R1B

Price Range
$3.9471 - $0.2981

Stock Levels
1009 In stock
Attributes
  • Overall Diameter
    0.750 in
  • Overall Height
    0.875 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.437 in ; 3/8-18 ; HDPE ; Blue

R3/8A

Price Range
$1.1041 - $0.0834

Stock Levels
10000 In stock
Attributes
  • Overall Diameter
    0.437 in
  • Overall Height
    0.750 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    3/8-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.562 in ; 1/2-14 ; Nylon ; Natural

R1/2D

Price Range
$1.8919 - $0.1511

Stock Levels
In production
Attributes
  • Overall Diameter
    0.562 in
  • Overall Height
    0.812 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/2-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.281 in ; 1/8-27 ; Nylon ; Natural

R1/8C

Price Range
$1.47 - $0.1111

Stock Levels
In production
Attributes
  • Overall Diameter
    0.281 in
  • Overall Height
    0.625 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/8-27
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.937 in ; 1-1/4-11-1/2 ; Nylon ; Natural

R1-1/4C

Price Range
$6.1656 - $0.4655

Stock Levels
In production
Attributes
  • Overall Diameter
    0.937 in
  • Overall Height
    0.875 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1-1/4-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.687 in ; 3/4-14 ; HDPE ; Blue

R3/4A

Price Range
$1.8079 - $0.1447

Stock Levels
19043 In stock
Attributes
  • Overall Diameter
    0.687 in
  • Overall Height
    0.875 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    3/4-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.343 in ; 1/4-18 ; HDPE ; Blue

R1/4A

Price Range
$0.6612 - $0.0529

Stock Levels
65892 In stock
Attributes
  • Overall Diameter
    0.343 in
  • Overall Height
    0.687 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1/4-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.124 in ; 1-1/2-11-1/2 ; HDPE ; Blue

R1-1/2A

Price Range
$4.9817 - $0.3764

Stock Levels
In production
Attributes
  • Overall Diameter
    1.124 in
  • Overall Height
    0.875 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1-1/2-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.750 in ; 1-11-1/2 ; HDPE ; Blue

R1A

Price Range
$2.6731 - $0.2028

Stock Levels
18876 In stock
Attributes
  • Overall Diameter
    0.750 in
  • Overall Height
    0.875 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.687 in ; 3/4-14 ; Nylon ; Natural

R3/4B

Price Range
$2.8718 - $0.2287

Stock Levels
1548 In stock
Attributes
  • Overall Diameter
    0.687 in
  • Overall Height
    0.875 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    3/4-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.562 in ; 1/2-14 ; HDPE ; Blue

R1/2A

Price Range
$1.201 - $0.0908

Stock Levels
42360 In stock
Attributes
  • Overall Diameter
    0.562 in
  • Overall Height
    0.812 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1/2-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.281 in ; 1/8-27 ; HDPE ; Blue

R1/8A

Price Range
$0.6134 - $0.0463

Stock Levels
8500 In stock
Attributes
  • Overall Diameter
    0.281 in
  • Overall Height
    0.625 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1/8-27
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.937 in ; 1-1/4-11-1/2 ; HDPE ; Blue

R1-1/4A

Price Range
$4.1839 - $0.3164

Stock Levels
1639 In stock
Attributes
  • Overall Diameter
    0.937 in
  • Overall Height
    0.875 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    1-1/4-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.250 in ; 2-11-1/2 ; HDPE ; Blue

R2A

Price Range
$5.6574 - $0.4267

Stock Levels
In production
Attributes
  • Overall Diameter
    1.250 in
  • Overall Height
    0.875 in
  • Color
    Blue
  • Compatible Thread Sizes (All)
    2-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.437 in ; 3/8-18 ; Nylon ; Natural

R3/8B

Price Range
$1.7422 - $0.1318

Stock Levels
5063 In stock
Attributes
  • Overall Diameter
    0.437 in
  • Overall Height
    0.750 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    3/8-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.740 in ; 1/4-18 ; Nylon ; Natural

PFP1/4C

Price Range
$1.9479 - $0.1479

Stock Levels
10476 In stock
Attributes
  • Overall Diameter
    0.740 in
  • Overall Height
    0.620 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/4-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.530 in ; 1-11-1/2 ; Nylon ; Natural

PFP1C

Price Range
$5.7582 - $0.4337

Stock Levels
1950 In stock
Attributes
  • Overall Diameter
    1.530 in
  • Overall Height
    0.950 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1-11-1/2
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.850 in ; 3/8-18 ; Nylon ; Natural

PFP3/8C

Price Range
$2.4739 - $0.1863

Stock Levels
64950 In stock
Attributes
  • Overall Diameter
    0.850 in
  • Overall Height
    0.670 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    3/8-18
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.040 in ; 1/2-14 ; HDPE ; Black

PFP1/2A

Price Range
$1.6562 - $0.1251

Stock Levels
7085 In stock
Attributes
  • Overall Diameter
    1.040 in
  • Overall Height
    0.820 in
  • Color
    Black
  • Compatible Thread Sizes (All)
    1/2-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.560 in ; 1/8-27 ; HDPE ; Black

PFP1/8A

Price Range
$1.1448 - $0.0867

Stock Levels
2576 In stock
Attributes
  • Overall Diameter
    0.560 in
  • Overall Height
    0.500 in
  • Color
    Black
  • Compatible Thread Sizes (All)
    1/8-27
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.310 in ; 3/4-14 ; HDPE ; Black

PFP3/4A

Price Range
$2.1332 - $0.1617

Stock Levels
18793 In stock
Attributes
  • Overall Diameter
    1.310 in
  • Overall Height
    0.950 in
  • Color
    Black
  • Compatible Thread Sizes (All)
    3/4-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 1.040 in ; 1/2-14 ; Nylon ; Natural

PFP1/2C

Price Range
$3.0853 - $0.2332

Stock Levels
In production
Attributes
  • Overall Diameter
    1.040 in
  • Overall Height
    0.820 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/2-14
  • Fitting Style
    Threaded
Threaded Protection Plug - 0.560 in ; 1/8-27 ; Nylon ; Natural

PFP1/8C

Price Range
$1.7489 - $0.1322

Stock Levels
5905 In stock
Attributes
  • Overall Diameter
    0.560 in
  • Overall Height
    0.500 in
  • Color
    Natural
  • Compatible Thread Sizes (All)
    1/8-27
  • Fitting Style
    Threaded