A-51
Pioneer
The Farmer’s Choice
Quick Couplings
Parker Hannifin Corporation
Pioneer Products Group
Minneapolis, MN
www.parker.com/quickcouplings
Catalog 3900 - Hydraulic Couplings
High Flow
ST Series Couplers - Female Pipe Thread
Body
Size
Brass
Part Number
Stainless
Part Number
Port End
Length
Largest
Diameter
Wrench
Flats
Brass
Weight (lbs.)
Stainless
Weight (lbs.)
1/8
BST-1
SST-1
1/8-27
NPTF
1.06
0.69
0.56
0.06
0.05
1/4
BST-2
SST-2
1/4-18
NPTF
1.54
0.94
0.81
0.17
0.15
3/8
BST-3
SST-3
3/8-18
NPTF
1.59
1.16
1.00
0.26
0.24
1/2
BST-4
SST-4
1/2-14
NPTF
1.98
1.30
1.13
0.59
0.37
3/4
BST-6
SST-6
3/4-14
NPTF
2.15
1.66
1.44
0.62
0.57
1
BST-8
SST-8
1-11 1/2
NPTF
2.43
2.02
1.75
0.99
0.93
1-1/4
BST-10
–
1 1/4-11 1/2
NPTF
2.44
2.51
2.00
1.38
–
1-1/2
BST-12
–
1 1/2-11 1/2
NPTF
2.88
3.00
2.50
1.42
–
ST Series Couplers - Male Pipe Thread
Body
Size
Brass
Part Number
Stainless
Part Number
Port End
Length
Largest
Diameter
Wrench
Flats
Brass
Weight (lbs.)
Stainless
Weight (lbs.)
1/8
BST-1M
SST-1M 1/8-27 NPTF
1.06
0.69
0.56
0.05
0.69
1/4
BST-2M
SST-2M 1/4-18 NPTF
1.69
0.94
0.81
0.13
0.81
3/8
BST-3M
SST-3M 3/8-18 NPTF
1.75
1.16
1.00
0.25
1.16
1/2
BST-4M
SST-4M 1/2-14 NPTF
1.94
1.30
1.13
0.34
1.30
3/4
BST-6M
SST-6M 3/4-14 NPTF
2.17
1.66
1.44
–
1.66
1
BST-8M
SST-8M 1-11 1/2 NPTF
2.53
2.02
1.75
0.85
2.02
ST Series
Straight-through Interface
Non-valved, manual sleeve