B-29
Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN
www.parker.com/quickcouplings
B
Hydraulics
Nipple - Female Thread
Body
Size
Part Number
Steel
Thread Size
Length
Exposed*
Length
Largest
Diameter
Wrench Flats
Weight (lbs.)
1/4
SM-252-4FP
1/4-18
NPTF
1.49
0.50
0.87
0.75
0.08
1/4
SM-252-4FB
G1/4 BSPP
1.64
0.65
0.87
0.75
0­.09
1/4
SM-252-6FP
3/8-18
NPTF
1.64
0.81
1.08
0.94
0­.14
1/4
SM-252-6FB
G3/8 BSPP
1.64
0.81
1.08
0.94
0.14
1/4
SM-252-6FO
9/16-18
ORB
1.64
0.55
0.87
0.75
0­.08
1/2
SM-502-8FO
3/4-16
ORB
2.14
0.72
1.23
1.06
0­.16
1/2
SM-502-8FP
1/2-14
NPTF
2.01
0.45
1.23
1.06
0­.15
1/2
SM-502-8FB
G1/2 BSPP
2.01
0.60
1.23
1.06
0.18
1/2
SM-502-12FP 3/4-14 NPTF
2.31
0.90
1.59
1.37
0­.30
1/2
SM-502-12FB G3/4 BSPP
2.63
1.07
1.59
1.37
0­.34
3/4
SM-752-12FO 1 1/16-12 ORB
2.60
0.39
1.73
1.50
0­.48
3/4
SM-752-12FP 3/4-14 NPTF
2.48
0.39
1.73
1.50
0­.52
3/4
SM-752-12FB G3/4 BSPP
2.60
0.53
1.73
1.50
0­.56
3/4
SM-752-16FP 1-11 1/2 NPTF
2.69
0.67
1.88
1.62
0.56
3/4
SM-752-16FB G 1 BSPP
2.69
0.67
1.88
1.62
0­.68
3/4
SM-752-16FO 1-5/16 - 12 ORB
2.69
0.67
1.88
1.62
0­.68
Couplers - Female Thread
Body
Size
Part Number
Steel
Thread Size
Length
Largest Diameter
Wrench Flats
Weight (lbs.)
1/4
SM-251-4FP
1/4-18
NPTF
2.09
1.06
0.75
0.24
1/4
SM-251-4FB
G1/4 BSPP
2.24
1.06
0.75
0­.26
1/4
SM-251-6FP
3/8-18
NPTF
2.24
1.06
0.94
0.28
1/4
SM-251-6FB
G3/8 BSPP
2.24
1.06
0.94
­0.26
1/4
SM-251-6FO
9/16-18
ORB
2.24
1.06
0.75
­0.25
1/2
SM-501-8FP
1/2-14
NPTF
3.00
1.56
1.25
0­.70
1/2
SM-501-8FB
G1/2 BSPP
3.00
1.56
1.25
0­.74
1/2
SM-501-8FO
3/4-16
ORB
3.16
1.56
1.25
0.70
1/2
SM-501-12FP
3/4-14
NPTF
3.07
1.56
1.37
0­.81
1/2
SM-501-12FB
G3/4 BSPP
3.16
1.56
1.37
0­.85
3/4
SM-751-12FO
1 1/16-12
ORB
3.89
2.22
1.62
­1.78
3/4
SM-751-12FP
3/4-14
NPTF
3.77
2.22
1.62
1.83
3/4
SM-751-12FB
G3/4 BSPP
3.89
2.22
1.62
­1.88
3/4
SM-751-16FP
1-11 1/2
NPTF
3.98
2.22
1.62
­1.84
3/4
SM-751-16FB
G 1 BSPP
3.98
2.22
1.62
1.89
3/4
SM-751-16FO
1-5/16 - 12
ORB
3.98
2.22
1.62
1.89
SM Series
High Pressure
Manual sleeve, poppet valve
Hydraulic Quick Couplings -
General Purpose
*
This dimension represents the portion that is exposed when the nipple is inserted into the mating Parker Coupler.