Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
LIQUIfit Fittings
4
6316 -
Bulkhead Union
Fractional Inch Tube-to-Tube
PART NUMBER
NOM
TUBE
O.D.
F
IN
K
MAX
IN
L1
IN
L2
IN
T
MIN
IN
6316 04 00
WP2
5/32
.51
.22
.41
.61
.41
6316 56 00
WP2
1/4
.59
.33
.39
.79
.49
6316 08 00
WP2
5/16
.71
.57
.41
1.06
.61
6316 60 00
WP2
3/8
.87
.57
.49
1.16
.73
6316 62 00
WP2
1/2
1.41
.81
.67
1.59 1.00
Metric Tube-to-Tube
PART NUMBER
NOM
TUBE
O.D.
F
MM
K
MAX
MM
L1
MM
L2
MM
T
MIN
MM
6316 04 00
WP2
4
13
5.5
10.5 15.5 10.5
6316 06 00
WP2
6
15
8.5
10
20
12.5
6316 08 00
WP2
8
18
14.5
10.5
27
15.5
6316 10 00
WP2
10
22
14.5
13
30
18.5
6316 12 00
WP2
12
26
18.5
15.5
35
22.5
6579 -
Fixed Elbow
Fractional Inch Tube-to-NPTF
PART NUMBER
NOM
TUBE
O.D.
NPTF
THREAD
SIZE
F
IN
G
IN
H
IN
L
IN
6579 56 11
WP2
1/4
1/8
3/8
.43
.87
.71
6579 56 14
WP2
1/4
1/4
3/8
.43
1.03
.71
6579 56 18
WP2
1/4
3/8
3/8
.43
1.04
.71
6579 60 14
WP2
3/8
1/4
1/2
.63
1.26 1.02
6579 60 18
WP2
3/8
3/8
1/2
.63
1.26 1.02
Metric Tube-to-BSPT
PART NUMBER
NOM
TUBE
O.D.
NPTF
THREAD
SIZE
F
IN
G
IN
H
IN
L
IN
6579 06 10
WP2
6
R1/8
10
11
14
19
6579 06 13
WP2
6
R1/4
10
11
14
19
6579 06 17
WP2
6
R3/8
10
11
14
19
ØD
ØG
H
L
F
C
Disconnect
First, depress the manual release
button, then pull the tubing out of
the fitting.
Connect
Simply push the tubing until it
bottoms out. Holding and sealing
is accomplished instantaneously.
6306 -
Union Connector
Fractional Inch Tube-to-Tube (Equal)
PART NUMBER
TUBE
O.D.
G
IN
L
IN
6306 56 00
WP2
1/4
.43
1.18
6306 08 00
WP2
5/16
.53
1.46
6306 60 00
WP2
3/8
.63
1.65
6306 62 00
WP2
1/2
.87
2.24
Metric Tube-to-Tube (Equal)
PART NUMBER
TUBE
O.D.
G1
MM
G2
MM
L
MM
6306 04 00
WP2
4
8.5
8.5
26.5
6306 06 00
WP2
6
10.5
10.5
30
6306 08 00
WP2
8
13.5
13.5
37
6306 10 00
WP2
10
16
16
42
6306 12 00
WP2
12
19
19
50.5
Fractional Inch Tube-to-Tube (Unequal)
PART NUMBER
TUBE
O.D. 1
TUBE
O.D. 2
G
IN
L
IN
6306 56 60
WP2
1/4
3/8
.63
1.61
6306 08 56
WP2
1/4
5/16
.53
1.46
6306 08 60
WP2
5/16
3/8
.63
1.65
6306 08 62
WP2
5/16
1/2
.87
2.16
6306 60 62
WP2
3/8
1/2
.87
2.20
Metric Tube-to-Tube (Unequal)
PART NUMBER
TUBE
O.D. 1
TUBE
O.D. 2
G1
MM
G2
MM
L
MM
6306 04 06
WP2
4
6
8.5
10.5
29
6306 04 08
WP2
4
8
13.5
13.5
37
6306 06 08
WP2
6
8
13.5
13.5
37
6306 06 10
WP2
6
10
16
16
42
6306 08 10
WP2
8
10
16
16
42
6306 08 12
WP2
8
12
19
19
50
6306 10 12
WP2
10
12
19
19
50
L
ØG1 ØG2 ØD2
ØD
ØD 1
6307 -
Cross
Metric Tube-to-Tube
PART NUMBER
TUBE
O.D.
H
MM
L
MM
T
MM
6307 06 00
WP2
6
46
22.5
4.2
6307 08 00
WP2
8
46
22.5
4.2
H
L
ØG
ØT
ØD
ØD
ØD
ØD