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Thread Type Compatibility

In order for two components to fit properly, thread types must be compatible. See the list below for thread types that can be used together.

 ** We had previously indicated GHT as compatible with 3/4-NH.  This was incorrect.  Oops... sorry.

Comparison of hose stock types

 Comparison of hose stock types

Chemical name
Neoprene
Nitrile (Buna-N)
Butyl
Hypalon
EPDM
CPE
ASTM-SE designation
SC
SB
R
TB
R
None
SAE J14 & SAE J200
BC
BG
AA
CE
AA
None
Flame resistance
Very good
Poor
Poor
Good
Poor
Good
Petroleum base oils
Good
Excellent
Poor
Good
Poor
Very good
Diesel fuel
Good to excellent
Excellent
Poor
Poor
Poor
Very good
Resistance to gas permeation
Good
Good
Outstanding
Good to excellent
Fair to good
Good
Weather
Good to excellent
Poor
Excellent
Very good
Excellent
Good
Ozone
Good to excellent
Poor for tube
Good for cover
Excellent
Very good
Outstanding
Good
Heat
Good
Good
Excellent
Very good
Excellent
Excellent
Low temperature
Fair to good
Poor to fair
Very good
Poor
Good to excellent
Good
Water-oil emulsions
Excellent
Excellent
Good
Good
Poor
Excellent
Water-glycol emulsions
Excellent
Excellent
Excellent
Excellent
Excellent
Excellent
Diesters
Poor
Poor
Excellent
Fair
Excellent
Very good
Phosphate esters
Fair for cover
Poor
Good
Fair
Very good
Very good
Phosphate ester based emulsions
Fair for cover
Poor
Good
Fair
Very good
Very good

 
Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
 1/16"
27
---
 1/8"
27
28
 1/4"
18
19
 3/8"
18
19
 1/2"
14
14
 5/8"
---
14

 
Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
 3/4"
14
14
1"
11 1/2
11
1 1/4"
11 1/2
11
1 1/2"
11 1/2
11
2"
11 1/2
11
2 1/2"
8
11

 
Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
3"
8
11
3 1/2"
8
11
4"
8
11
5"
8
11
6"
8
11
8"
8
---