Page 615 - DixonCatalog20092010

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T
Abbreviation System Name Compatibility Seal Method
BSPP
BSPTr
CHT
GHT
IPS
IPT
JIC
NH
or
NST
NPT
NPTF
NPSH
NPSM
SIPT
TIPT
NYC
Chicago
British Standard P ipe Parallel
British Standard P ipe Taper
American Standard Fire Hose Thread
(1" National Hose Thread is Chemical
Hose Thread, also known as Booster
Hose Thread)
Garden Hose Thread
Iron Pipe Straight Thread
Iron Pipe Thread
Joint Industrial Committee
American Standard Fire Hose
Coupling Thread
(National Hose thread also known as
National Standard Thread)
American Standard Taper Pipe
Thread
(National Pipe Tapered)
American Standard Taper Pipe
Fuel Dryseal Thread (National Pipe
Tapered) (Dryseal)
American Standard Straight Pipe
for Hose Couplings (National Pipe
Straight Hose)
American Standard Straight
Mechanical Joints (National P ipe
Straight Mechanical)
Straight Iron P ipe Thread
Tapered I ron P ipe Thread
NYC Fire Department
Chicago Fire Department
Male BSPP with Female BSPP
Female BSPP with Male BSPP
Female BSPP with Male BSPTr
Male BSPTr with Female BSPTr
Male BSPTr with Female BSPP
Female BSPTr with Male BSPTr
Female BSPTr not compatible with Male BSPP
1" Male NH (NST) with 1" Female NH (NST)
1"Female NH (NST) with 1" Male NH (NST)
1" Thread is used on both 3/4" hose and 1" hose.
Not compatible with other systems
Male GHT with Female GHT
Female GHT with Male GHT
Thread is same for all size hose
Not compatible with other systems
Generic Name for Straight Pipe Thread
See NPSH for compatibility
Generic Name for All Pipe Thread
More information required
Used with other mating JIC threads
Male NH (NST) with Female NH (NST)
Female NH (NST) with Male NH (NST)
Not compatible with other systems
Thread pitch and diameters of fire threads may vary
according to local and municipal regulations.
Male NPT with Female NPT
Male NPT with Female NPTF
Male NPT with Female NPSM
Male NPT with Female NPSH
Female NPT with Male NPT
Female NPT with Male NPTF
Female NPT not compatible with Male NPSM or Male
NPSH
Male NPTF with Female NPTF
Male NPTF with Female NPT
Male NPTF with Female NPSM
Male NPTF with Female NPSH
Female NPTF with Male NPTF
Female NPTF with Male NPT
Female NPTF with Male NPSM or NPSH
Note: NPTF with NPTF threads do not require sealant
for the initial use. After that, sealant is required.
Male NPSH with Female NPSH
Female NPSH with Male NPSH
Female NPSH with Male NPT
Female NPSH with Male NPTF
Female NPSH with Male NPSM
Male NPSM with Female NPSM
Male NPSM with Female NPSH
Female NPSM with Male NPSM
Female NPSM with Male NPT
Female NPSM with Male NPTF
Generic name for Straight Pipe Thread
Generic name for Tapered Pipe Thread
Straight Thread used in New York City
Straight Thread used in Chicago
Washer
Washer
Washer
Thread
Washer
Thread
Washer
Washer
Washer
Washer
Washer
Mechanical
Washer
Washer
Thread
Thread
Washer
Washer
Thread
Thread
Thread
Thread
Washer
Washer
Thread
Thread
Not Compatible
Washer
Washer
Washer
Washer
Washer
Seal can be either
mechanical or washer.
Mating fittings must be
of same type.
Washer
Thread
Washer
Washer