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Can't find what you're looking for? Try searching the site with the search box to the left.     Technical Support
Common Hydraulic Fittings/Adapters
NPT Fittings | NPT Swivel Fittings | JIC to NPT Adapters  | JIC Adapters | O-ring to NPT Adapters
O-ring to JIC Adapters  | O-ring Adapters  | Hose Bead Fittings

Sizing Chart

NPT Fittings
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NPT Swivel Fittings
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JIC to NPT Adapters
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JIC Adapters
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O-ring to NPT Adapters
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O-ring to JIC Adapters
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O-ring Adapters
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Hose Bead Fittings
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Thread Sealants
HS
Nbr		 Ritelok
Nbr		 Loctite
Nbr		 Description Color Size Ship
Wt.
3660001 HP69-50 56931 Hydraulic Sealant Brown 50ml 0.20
3660051 PS65-50 56531 Teflon Pipe Sealant Standard White 50ml 0.20

 

 
Adapter Sizing Chart
NPT Threads measure 1/4" larger than their actual size.  For example, a 1/4" NPT will actually measure 1/2" on the O.D. of the threads.  JIC and SAE thread O.D.'s measure as listed below.  The first number listed is the size of thread, the second number is the threads per inch.
Size NPT
(Pipe)		 JIC
(37°)		 SAE
(Oring)
2 1/8 - 27 5/16 - 24 5/16 - 24
3 - 3/8 - 24 3/8 - 24
4 1/4 - 18 7/16 - 20 7/16 - 20
5 - 1/2 - 20 1/2 - 20
6 3/8 - 18 9/16 - 18 9/16 - 18
8 1/2 - 14 3/4 - 16 3/4 - 16
10 - 7/8 - 14 7/8 - 14
12 3/4 - 14 1-1/16 - 12 1-1/16 - 12
14 - 1-3/16 - 12 1-3/16 - 12
16 1 - 11-1/2 1-5/16 - 12 1-5/16 - 12
20 1-1/4 - 11-1/2 1-5/8 - 12 1-5/8 - 12
24 1-1/2 - 11-1/2 1-7/8 - 12 1-7/8 - 12
32 2 - 11-1/2 2-1/2 - 12 2-1/2 - 12

 

  
 
Thread Sizing Tool
Allows the user to properly identify threads of all hydraulic types.  This handy kit includes a thread pitch gauge (American and Metric), inside & outside caliper (inches and millimeters), (2) seat angle gauges (37 degree/45 degree & 12 degree/30 degree) 24-page international measuring & identification guide and instruction booklet.  A carrying case is standard for easy and convenient storage.
HS
Nbr		 Ship
Wt.
 
1709291 1