Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
H10
Catalog 3501E
45
° Flare Fittings
45
° Flare Elbow to SAE Metric
Straight Thread 159F-X-MIX
Part Number TUBE
SIZE
Metric
Thread
STRAIGHT
THREAD
tube
HEX
M N
D
159
F-8-MII6
1/2
M16 X 1.5 3/4-16 22mm 1.10 1.16 .36
159
F-10-MI27 5/8 M27 x 2.0 7/8-14 1 1/4 1.21 1.50 .50
Note: Fluorocarbon o-ring is standard
45
° Flare to SAE Straight
Thread 1595F
PART NO.
TUBE
SIZE
STRAIGHT
THREAD
STRAIGHT
THREAD
tube
HEX
L
N FLOW
DIA. D
1595
F-8-8
1/2
3/4-16
3/4-16
7/8 1.00 1.16 .398
1595
F-12-8*
3/4
3/4-16 1 1/16-14 7/8 1.41 1.30 .398
1595
F-12-12*
3/4 1 1/16-12 1 1/16-14 1 1/4 1.41 1.45 .615
Note: Fluorocarbon o-ring is standard
D
C
Hex
M
N
N
D
M
N
1
D
M
N
Hex
Hex
N
D
L
90
° Swivel Elbow 166FSV
Part No.
tube
size
straight
thread
C HEX
m
n
flow
dia. d
166
FSV-4-4
1/4
7/16-20
9/16
.86
.93
.189
166
FSV-6-6
3/8
5/8-18
3/4
1.04
1.12
.282
166
FSV-8-8
1/2
3/4-16
7/8
1.20
1.29
.407
166
FSV-10-10 5/8
7/8-14
1
1.39
1.50
.501
166
FSV-12-12*
3/4 1-1/16-14
1-1/4
1.60
1.83
.626
Adapter Tee 256F
Part No.
tube
size
pipe
thread
straight
thread
m
n
n1
flow
dia. d
256
F-4-2 1/4
1/8
7/16-20
.86
.77
.47
.220
Flared Seal Plug 639F
Ref. SAE 010109
Part No.
tube size
straight
thread
c hex
l
639
F-4
1/4
7/16-20
7/16
.69
639
F-5
5/16
1/2-20
1/2
.78
639
F-6
3/8
5/8-18
5/8
.88
639
F-8
1/2
3/4-16
3/4
1.06
639
F-10
5/8
7/8-14
7/8
1.19
C HEX
L
D
L
1
2
C HEX
D
L
C HEX
C HEX
L
D
L
C HEX
Cap Nut 640F
Ref. SAE 010112
Part No.
tube size
straight
thread
c hex
l
640
F-3
†
3/16
3/8-24
1/2
.47
640
F-4
†
1/4
7/16-20
9/16
.53
640
F-5
†
5/16
1/2-20
5/8
.62
640
F-6
†
3/8
5/8-18
3/4
.69
640
F-8
†
1/2
3/4-16
7/8
.84
640
F-10
†
5/8
7/8-14
1-1/16
.97
Flared Union–Female Flare
to Female Flare 660FHD
Ref. SAE 010107
Part No.
tube size straight
thread
c hex
l
flow dia. d
660
FHD-4
†
1/4
7/16-20
5/8
.98
.251
660
FHD-6
†
3/8
5/8-18
13/16
1.24
.376
660
FHD-8
†
1/2
3/4-16
15/16
1.43
.501
660
fhd-10
†
5/8
7/8-14
1-1/16
1.67
.626
Male Flare to Female
Flare 661FHD
Ref. SAE 010105
Part No.
1
tube
size
2
tube
size
1
straight
thread
2
straight
thread
c hex l
flow
dia.
d
661
FHD-4-6
†
1/4
3/8
7/16-20 5/8-18 13/16 1.20 .189
661
FHD-4-8
†
1/4
1/2
7/16-20 3/4-16 15/16 1.36 .189
661
FHD-6-4
†
3/8
1/4
5/8-18 7/16-20 5/8 1.10 .282
661
FHD-6-8
†
3/8
1/2
5/8-18
3/4-16 15/16 1.42 .282
661
FHD-8-6
†
1/2
3/8
3/4-16
5/8-18 13/16 1.39 .407
661
FHD-8-10
†
1/2
5/8
3/4-16
7/8-14 1-1/16 1.67 .407
661
FHD-10-8
†
5/8
1/2
7/8-14
3/4-16 15/16 1.60 .501
661
fhd-10-12*
†
5/8
3/4
7/8-14 1-1/16-14 1-5/16 1.95 .501
661
fhd-12-10*
†
3/4
5/8 1-1/16-14 7/8-14 1-1/16 1.86 .626
Female Flare to Male
Pipe Thread 664FHD
Ref. SAE 010106
Part No.
tube size
pipe
thread
straight
thread c hex
l
flow
dia. d
664
FHD-4-2
†
1/4
1/8
7/16-20
5/8
.91
.220
664
FHD-4-4
†
1/4
1/4
7/16-20
5/8
1.01
.252
664
FHD-6-4
†
3/8
1/4
5/8-18
13/16
1.28
.345
664
FHD-8-6
†
1/2
3/8
3/4-16
15/16
1.31
.407
*
Comes standard with thread protectors
†
Should be used with 2GF flare gasket