Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
Catalog 3501E
45° Flare Fittings
E13
E
*Comes standard with thread protectors
Flared Seal Plug 639F
Ref. SAE 010109
Part
tube
straight
c
No.
size
thread
hex
l
639F-4
1/4
7/16-20
7/16
.69
639F-5
5/16
1/2-20
1/2
.78
639F-6
3/8
5/8-18
5/8
.88
639F-8
1/2
3/4-16
3/4
1.06
639F-10
5/8
7/8-14
7/8
1.19
Cap Nut 640F
Ref. SAE 010112
Part
tube
straight
c
No.
size
thread
hex
l
640F-3
†
3/16
3/8-24
1/2
.47
640F-4
†
1/4
7/16-20
9/16
.53
640F-5
†
5/16
1/2-20
5/8
.62
640F-6
†
3/8
5/8-18
3/4
.69
640F-8
†
1/2
3/4-16
7/8
.84
640F-10
†
5/8
7/8-14
1-1/16
.97
Flared Union–Female Flare to Female Flare 660FHD
Ref. SAE 010107
Part
tube
straight
c
flow
No.
size
thread
hex
l
dia. d
660FHD-4
†
1/4
7/16-20
5/8
.98
.251
660FHD-6
†
3/8
5/8-18
13/16
1.24
.376
660FHD-8
†
1/2
3/4-16
15/16
1.43
.501
660fhd-10
†
5/8
7/8-14
1-1/16
1.67
.626
Reducer–Male Flare to Female Flare 661FHD
Ref. SAE 010105
Part
1 tube
2 tube
1 straight 2 straight
c
flow
No.
size
size
thread
thread
hex
l
dia. d
661FHD-4-6
†
1/4
3/8
7/16-20
5/8-18
13/16 1.20
.189
661FHD-4-8
†
1/4
1/2
7/16-20
3/4-16
15/16 1.36
.189
661FHD-6-4
†
3/8
1/4
5/8-18
7/16-20
5/8
1.10
.282
661FHD-6-8
†
3/8
1/2
5/8-18
3/4-16
15/16 1.42
.282
661FHD-8-6
†
1/2
3/8
3/4-16
5/8-18
13/16 1.39
.407
661FHD-8-10
†
1/2
5/8
3/4-16
7/8-14
1-1/16 1.67
.407
661FHD-10-8
†
5/8
1/2
7/8-14
3/4-16
15/16 1.60
.501
661fhd-10-12*
†
5/8
3/4
7/8-14
1-1/16-14 1-5/16 1.95
.501
661fhd-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
tube
pipe
straight
c
flow
No.
size
thread
thread
hex
l
dia. d
664FHD-4-2
†
1/4
1/8
7/16-20
5/8
.91
.220
664FHD-4-4
†
1/4
1/4
7/16-20
5/8 1.01
.252
664FHD-6-4
†
3/8
1/4
5/8-18
13/16 1.28
.345
664FHD-8-6
†
1/2
3/8
3/4-16
15/16 1.31
.407
D
L
1
2
C HEX
D
L
C HEX
C HEX
L
C HEX
L
D
L
C HEX
†
Should be used with 2GF copper fare gasket.