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Threaded Adapters

This page represents the adapters that we stock.  Many other configurations, styles and threads are available on a special order basis. 

To find your adapter, first click on the picture that represents your needs.  That will take you to the correct table of adapters.

Adapters that have fire hose threads on both ends will be highlighted in yellow.

Adapters that are not highlighted in yellow will have tapered iron pipe threads on one end and fire hose threads on the other.

Please Note:  3/4" NST is also known as Garden Hose Thread (GHT)

Also Note:  NST (National Standard Thread) designation has been superceded by the designation NH (National Hose).  Older fittings that are stamped "NST" are now being stamped "NH". 

 

Type 35 Double Female Swivel Adapter

 

Type 36 Double Male Adapter

 

Type 37 Female by Male Adapter

Type 35
Double Female Swivel

  Type 36
Double Male
  Type 37
Female x Male
         

Type 53 Swivel Female by Rigid Female Adapter

 

Type 54 Swivel Female by Male Adapter

  2-1/2" Aluminum Cap with Chain
Type 53
Female Swivel x Rigid Female
  Type 54
Swivel Female x Male
  Caps &Plugs
Swivel side is always NH   Female is always NH    

 

 

Type 35 Double Female Swivel Adapter

Type 35 - Double Female Adapters

Size Thread Size Thread Item #
1" NH 1" NH RH3511
1-1/2" NH 1-1/2" NH RH351515
2-1/2" NH 2-1/2" NH RH352525

 

Type 36 Double Male Adapter

Type 36 - Double Male Adapters

Size Thread Size Thread Item #
1" NH 1" NH RH3611
1" NH 1" NPT RH3611PF
1-1/2" NH 1-1/2" NH RH361515
1-1/2" NH 1-1/2" NPT RH361515PF
1-1/2" NPT 2-1/2" NH RH362515PF
2" NPT 1-1/2" NH RH36215PF
2" NPT 2-1/2" NH RH36225PF
2-1/2" NH 2-1/2" NH RH362525
2-1/2" NH 2-1/2" NPT RH362525PF
3" NPT 2-1/2" NH RH36325PF

 

 

Type 37 Female by Male Adapter

Type 37 - Female to Male Adapters

Female Size Thread Male Size Thread Item #
1" NPT 1" NH RH3711PF
1" NH 3/4" NH RH37134
1" NH 1" NPT RH3711RV
1" NH 1-1/2" NH RH37115
1-1/2" NH 3/4" NH RH371534
1-1/2" NH 1-1/2" NH RH371515RV
1-1/2" NH 1" NH RH37151
1-1/2" NH 2-1/2" NH RH371525
1-1/2" NPT 1-1/2" NH RH371515PF
2" NPT 1-1/2" NH RH37215PF
2" NPT 2-1/2" NH RH37225PF
2-1/2" NPT 2-1/2" NH RH372525PF
2-1/2" NH 1-1/2" NH RH372515
2-1/2" NH 3/4" NH RH372534
2-1/2" NH 2-1/2" NPT RH372525PF
3" NPT 2-1/2" NH RH37325PF

 

 

Type 53 Swivel Female by Rigid Female Adapter

Type 53 - Female Swivel x Rigid Female

Rigid Side Thread Swivel Side Thread Item #
2" NPT 2-1/2" NH RH53225
2-1/2" NPT 2-1/2" NH RH532525
3" NPT 2-1/2" NH RH53325

 

 

Type 54 Swivel Female by Male Adapter

Type 54 - Rigid Male x Female Swivel

Rigid Side Thread Swivel Side Thread Item #
1-1/2" NPT 1-1/2" NH RH541515
2" NPT 2-1/2" NH RH54225
2-1/2" NPT 2-1/2" NH RH542525
3" NPT 2-1/2" NH RH54325

 

 

 

2-1/2" Aluminum Cap with Chain 2-1/2" Aluminum Plug with Chain

Caps and Plugs

Type Size Thread Item #
Cap 1" NH RHC10
Cap 1-1/2" NH RHC15
Plug 1-1/2" NH RHP15
Cap 2-1/2" NH RHC25
Plug 2-1/2" NH RHP25

 

NH  =National Hose.  Previously designated National Standard Thread (NST) and
   Chemical Hose Thread (CHT).
NST  =National Standard Thread which is also Chemical Hose Thread (CHT) and
   National Hose (NH).
NPT  =National Pipe Thread, which is also Tapered Iron Pipe Thread (TIPT)
NPSH  =National Pipe Straight Hose (Pipe thread pitch but uses a gasket instead of
   tapered threads to achieve seal) Sometimes abbreviated as IPS
RL  =Rocker lug style fitting
PL  =Pin Lug
CP  =Chrome plated
BR  =Brass
AL  =Aluminum
SW  =Swivel


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Copyright © 2006 David's Fire Equipment
Last modified: 02/02/22