H3
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
4300
Catalog
JIS Fittings
Dimensions and pressures for reference only, subject to change.
Table H1 – Parker JIS Fittings Hose
Adaptability
JIS Fittings
Parker introduced Japanese Industrial Standard (JIS) adapters
in the early 1990s to address market requirements for OEM and
replacement fittings. These fittings are typically used as hose
adapters on equipment designed and/or manufactured in Japan
andKorea.Parker’s JISadapters are designedwith 30° flare and
60
° cone connections and typically incorporate BSP threads.
Parker JIS adapters are designed with BSPP and BSPT port
ends and two styles of hose ends: T4 (30° flare, BSPP threads)
and P4 (60° cone, BSPP threads).Two additional Parker series
of fittings, KA (Komatsu flare) and K4 (BS B5200) adapters,
are similar to JIS style fittings and appear in sections I and J
of this catalog.
TheT4 and P4 interfaces, as shown in Fig. H1, provide end user
flexibility of connecting to the most common Parker hose ends
available as listed in Table H1.
Parker’s JISadapter offering that uses theBSPPport connection
are manufactured in accordance with the JIS B2351 type “O”
port connection which is commonly used for higher pressure
systems. Fig. H2 illustrates this port connection and Table H2
shows appropriate JIS B2351 O-rings and dash sizes.
It should be noted that Parker offers two very similar cone style
BSPP adapters — P4 and K4. Parker’s K4 (60 cone, BSPP) fit-
tings conform toBS5200, whileParker’s JIS cone adaptersmeet
JIS B8363 specifications.
These fittings, while very similar,
are not interchangeable.
See the
I section
of this catalog for
more specific information on their differences.
Design and Construction
Construction:
Shaped JIS adapters are manufactured from
a hot forged construction. Straight adapters are manufactured
from cold drawn barstock.
Threads:
The standard JIS products are manufactured with the
thread forms listed below:
BSPP Threads: ISO 228-1 G, JIS B 0202,
BSPT Threads: ISO 7/1, JIS B 0203
Identification:
All Parker JIS fittings are stamped with “JIS”
for positive identification and differentiation from similar style
fittings.
Reference Locations
Dynamic Pressure Ratings:
Please refer to the last column of
part number tables located on the following pages of this section
for the appropriate dynamic pressure ratings.
Standard Material Specifications:
Please refer to
Table U1
located in the
Appendix section.
Fig. H1 – JIS T4 and P4 Interfaces
Adapter
Connection End
Mating Parker Hose
Fitting Series
P4 / P46
UT, GU, G1, G2
T4 / T46
FU
Table H2 – JIS B2351 Port
Threads and O-Rings as
shown in Fig. H2
“
G”Thread
BSPP per
ISO 228-1
JIS B 0202
Dash
Size
Port
O-Ring
(
See
Pg. N6)
1/8-28
2
P8
1/4-19
4
P11
3/8-19
6
P14
1/2-14
8
P18
3/4-14
12
P24
1-11
16
P29
Fig. H2 – JIS B2351 Type
“
O” Port Connection
JIS O-Ring
JIS B0202 (BSPP) Threads
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