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Heyco® TEMPlugs™ for NPT
Threaded Ports

For NPT Threaded Ports
Temporary Threaded Plugs for In-House Pressure Testing, Handling, and Transport

  • Part Numbers and Specifications
  • Features
NPT
THREADED
PORT
SIZE		 PART NO. DESCRIPTION PART DIMENSIONS
Black A
Wrenching
Flats		 B
Threaded
Section		 C
Head
Height		 D
Shoulder
Diameter
in. mm. in. mm. in. mm. in. mm.

Square Head - with Flange
1/8 G5440 PTNS 1/8-F .43 10,9 .29 7,4 .19 4,8 .56 14,2
1/4 G5441 PTNS 1/4-F .44 11,2 .35 9,0 .25 6,4 .69 17,5
3/8 G5442 PTNS 3/8-F .44 11,2 .41 10,4 .25 6,4 .81 20,6
1/2 G5443 PTNS 1/2-F .56 14,2 .47 11,9 .25 6,4 1.00 25,4
3/4 G5444 PTNS 3/4-F .63 16,0 .52 13,2 .25 6,4 1.25 31,8

Square Head - no Flange
3/4 G5449 PTNS 3/4 .62 15,7 .52 13,2 .25 6,4 n/a n/a
1 G5450 PTNS 1 .81 20,6 .59 15,0
1-1/4 G5451 PTNS 1-1/4 1.00 25,4 .83 21,1 .38 9,7
1-1/2 G5452 PTNS 1-1/2 1.25 31,8

Hex Head
1/4 G5455 PTNH 1/4 .25 6,4 .31 7,9  
3/8 G5456 PTNH 3/8 .31 7,9 .38 9,7
1/2 G5457 PTNH 1/2 .38 9,7
3/4 G5458 PTNH 3/4 .56 14,2 .50 12,7
1 G5459 PTNH 1 .63 16,0 .53 13,5

Standard color black.

  • Not intended for permanent applications; commonly used for low-pressure testing and in-plant processing.
  • Keep contaminants and moisture from threaded ports.
  • Oil and heat resistant up to 250°F.
  • Applicable Spec: MIL-C-5501/5, NAS 840.

QuickSpecs

Material HDPE High-Density Polyethylene (TEMPlugs)
Temperature Range HDPE 0°F (-18°C) to 165°F (74°C)
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