Hose and Hose Assemblies. JGB's Hose, Fitting, and Valves CatalogJGB Enterprises Inc. celebrates its 35 years. The owner, Jay G Bernhardt, founded the company in 1977 and  we have grown the company into a leading defense contractor and commercial supplier in hoses and fittings
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Thread Dimensions

Nominal Dimensions of Standard Threads

ODM - Outside Diameter of the Male IDF - Inside Diameter of the Female TPI - Threads Per Inch

 

  Size   Pipe O.D.Tapered Threads Straight Threads
  NPT  BSPTr     NPSHNPSMNST (NH)  BSPP
TPI  TPI     TPIODM (max)   IDF (min)  TPI   ODM (max)    IDF (min)   TPI    ODM (max)   IDF (min)   TPIODM (max)  IDF (min)
1/8"  .405  27   28       27   0.397 0.358       0.383   0.337
 1/4"   .504   18   19      18   0.526   0.468       0.516   0.450  
 3/8"   .675   18   19      18   0.662   0.603       0.656   0.588  
                
 1/2"   .840   14   14   14   0.8248   0.7395   14   0.823   0.747       0.825   0.733  
 3/4"   1.050   14   14   14   1.0353   0.9500   14   1.034   0.958   8   1.375   1.2246    1.041   0.950  
 1"   1.315   11.5   11   11.5   1.2951   1.1921   11.5   1.293   1.201   8   1.375   1.2246   11   1.309   1.193  
 1-1/4"  1.660   11.5   11   11.5   1.6399   1.5369   11.5   1.638   1.546      11   1.650   1.534  
 1-1/2"   1.900   11.5   11   11.5   1.8788   1.7758   11.5   1.877   1.785   9   1.990   1.8577    1.882   1.766  
 2"   2.375   11.5   11   11.5   2.3528   2.2498   11.5   2.351   2.259      11   2.347   2.231  
 2-1/2"   2.875   8   11   8   2.8434   2.6930   8   2.841   2.708   7.5   3.068   2.9104   11   2.960   2.844  
                
 3"   3.500   8   11      8   3.467   3.334   6   3.623   3.5306   11   3.460   3.344  
 4"   4.500   8   11      8   4.466   4.333   4   5.010   4.7111    4.450   4.334  
 4-1/2"            4   5.760   5.4611   11    
 5"   5.563   8   11      8   5.528   5.395   4   6.260   5.9602   11   5.450   5.359  
 6"   6.625   8   11      8   6.585   6.452   4   7.025   6.7252    6.450   6.359  
                
 8"   8.625   8               
 10"   10.750   8               
 12"   12.750   8               

GHT (3/4") -- 1.0625 ODM, 11-1/2 TPI

Note: Female NPT (Tapered Pipe) thread is not available on hose swivelnuts.

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115 Metropolitan Drive, Liverpool, NY 13088 (Syracuse Area)
Largest INDUSTRIAL and HYDRAULIC HOSE Company in Syracuse, NY
Phone: 1 (315) 451-2770 Fax: (315) 451-8503  Contact us

NOTE: The product data on the web site is based on catalog information from the manufacturer.
JGB is not responsible for any errors or changes to that data made by the manufacturer.