Parker Hannifin Corporation
Quick Coupling Division
Minneapolis, MN 55427
6
Quick Coupling Products
Non-Spill Couplings
FS Series
Couplers
Female Pipe Thread
Body
Part
Thread
Overall
Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Diameter P/Piece
A
B
C
3/8
FS-371-6FP 3/8-18 NPT 2.52 1.06 1.30 0.58
1/2
FS-501-8FP 1/2-14 NPT 2.74 1.38 1.58 0.92
1/2
FS-501-10FO 7/8-14 UNF 2.86 1.38 1.58 0.96
3/4
FS-751-12FP 3/4-14 NPT 3.63 1.75 1.99 2.00
3/4
FS-751-12FO 1-1/16-12 UNF 3.73 1.75 1.99 2.12
1
FS-1001-16FP 1-11 1/2 NPT 4.14 1.87 2.25 2.76
1
FS-1001-16FO 1-5/16-12 UNF 4.24 1.87 2.25 2.80
Body
Part
Thread
Overall
Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Diameter P/Piece
A
B
C
1/4
FS-251-4FP 1/4-18 NPT 1.79 1.00 1.06 0.25
Female Pipe Thread
Body
Part
Thread
Overall
Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Diameter P/Piece
A
B
C
1/4
FS-251-4MP 1/4-18 NPT 2.00 1.00 1.06 0.25
Male Pipe Thread
Body
Part
Thread
Overall
Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Diameter P/Piece
A
B
C
1/4
FS-251-6FO 9/16-18 UNF 1.92 1.00 1.06 0.24
3/8
FS-371-8FO 3/4-16 UNF 2.83 1.12 1.30 0.63
SAE Straight Thread
Body
Part
Thread
Overall
Hex Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Size Diameter P/Piece
A B C D
1/4
FS-251-4MZ 1/4" CPI Tube 2.14 1.00 0.56 1.06
–
Tube Fitting Connection
Body
Part
Thread Overall Hex Hex Hex Largest Wt. (LB.)
Size (in.)
No.
Size
Length Size Size Size Diameter P/Piece
A B C D E
1/4
FS-251-4BZ 1/4" CPI Tube 2.52 1.00 0.62 0.56 1.06
–
BulkheadW/ Tube Fitting
A
B
C
D
E
A
B
C
B
A
C
D
A
B
C
A
B
C
A
B
C