Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
Catalog 3501E
Air Brake–NTA
®
Fittings
H7
H
Bulkhead Union 62NBH
Part
tube
straight
b
c
flow bulkhead
No.
size
thread
hex
hex
l
m
dia. d hole dia.
62NBH-3* 3/16
5/16-24
7/16
7/16 1.80 1.21 .087
5/16
62NBH-4
1/4
7/16-24
9/16
9/16 2.04 1.38 .137
7/16
62NBH-6
3/8
17/32-24 11/16
3/4
2.54 1.62 .217
17/32
62NBH-8
1/2
11/16-20 13/16
1
2.92 1.88 .338
11/16
62NBH-10 5/8
13/16-18 15/16
1
2.99 2.01 .398
13/16
*Meets D.O.T. FMVSS 571.106 specifcations.
No applicable SAE specifcation for this tube size.
Bulkhead Union 62NFBH
Part
tube Flare straight
b
c
flow
bulkhead
No.
size Size
thread
hex hex
l
m dia. d
hole dia.
62NFBH-4
1/4
1/4
7/16-24 9/16 9/16 2.04 1.38 .137
7/16
62NFBH-6
3/8
3/8
17/32-24 11/16 3/4 2.54 1.62 .217
5/8
62NFBH-8
1/2
1/2
11/16-20 13/16 1
2.92 1.88 .338
3/4
62NFBH-10
5/8
5/8
13/16-18 15/16 1
3.04 2.02 .398
7/8
62NFBH-10-6
5/8
3/8
11/16-20 7/8
3/4 2.43 1.90 .280
5/8
62NFBH-10-8
5/8
1/2
13/16-18 7/8
7/8 2.90 2.40 .400
3/4
Bulkhead Union 66NBH
a
e
Part
tube
pipe
straight straight
b
c
flow bulkhead
No.
size
thread
thread
thread
hex
hex
l
m
dia. d hole dia.
66NBH-8-6
1/2
3/8
11/16-20
7/8-14
1-1/16 1-1/16 1.94 1.42 .338
7/8
Female Connector 66NTA
Ref. SAE 100103 BA
Part
tube
pipe
straight
c
flow
No.
size
thread
thread
HEx
l
m
dia. d
66NTA-4-2
1/4
1/8
7/16-24
9/16 1.17
.84
.137
66NTA-4-4
1/4
1/4
7/16-24 11/16 1.40 1.07
.137
66NTA-6-2
3/8
1/8
17/32-24 9/16 1.46 1.00
.217
66NTA-6-4
3/8
1/4
17/32-24 11/16 1.64 1.18
.217
66NTA-6-6
3/8
3/8
17/32-24
7/8 1.64 1.18
.217
66NTA-8-6
1/2
3/8
11/16-20
7/8 1.79 1.27
.338
66NTA-8-8
1/2
1/2
11/16-20 1-1/16 1.96 1.44
.338
66NTA-10-6
5/8
3/8
13/16-18
7/8 1.80 1.31
.398
66NTA-10-8
5/8
1/2
13/16-18 1-1/16 1.99 1.50
.398
L
D
C HEX
M
B HEX
L
D
C HEX
M
B HEX
A
E
L
D
C HEX
M
L
D
C HEX
M
B HEX