Fragola 1/4" NPT National Pipe Tapered Thread Blue Anodized Aluminum Allen Plugs

Dimensions for pipe thread are at the bottom of the page

Fragola 1/4" NPT National Pipe Tapered Thread Blue Anodized Aluminum Allen Plugs

Suggested: $2.64 Kartek Price: $5.00

Sold As: 1 Allen Pipe Plug

Part Number: FRA493203

MFG Number: 493203
CA Prop 65 Warning


Fragola 1/4" NPT National Pipe Tapered Thread Blue Anodized Aluminum Allen Plugs
NPT - National Pipe Tapered thread. Always remember that pipe thread fittings are measured INSIDE diameter not outside diameter of the threads. See diagram at bottom of this page.

Related Parts



Pipe Thread Dimensions:
1/16" NPT is 1/16" I.D. / 0.313 O.D.
1/8" NPT is 1/8" I.D. / 0.405" O.D.
1/4" NPT is 1/4" I.D. / 0.540" O.D.
3/8" NPT is 3/8" I.D. / 0.675" O.D.
1/2" NPT is 1/2" I.D. / 0.840" O.D.
3/4" NPT is 3/4" I.D. / 1.050" O.D.
1" NPT is 1" I.D. / 1.315" O.D.
1-1/4" NPT is 1-1/4" I.D. / 1.660" O.D.
1-1/2" NPT is 1-1/2" I.D. / 1.900" O.D.
2" NPT is 2" I.D. / 2.375" O.D.
How is pipe thread measured?