Non-Spill Hydraulic Quick Couplers | Parker FEM Series Couplers
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COUPLERS Sizes 1/4" - 1" Go to Parker FEM Series Nipples Select Another Hydraulic QC |
Specifications for Parker FEM Series Couplers
NOTE: Parker is currently updating the design of the FEM couplings. As of August 2021, the 3/8" and 1/2" sizes are updated to the new design, the rest of the sizes are to follow. The new design has a higher pressure rating of 5,000 PSI, improved Sleeve-Lok functionality, and better corrosion resistance. Read more on our FEM Series Design Changes blog.
Body Size (in.) |
Part Number |
Thread Size |
Dimensions (in.) |
||
Overall Length A |
Wrench Flats B |
Largest Diameter C |
|||
1/4 |
FEM-251-4FP-NL |
.250-18 NPSF |
1.96 |
27mm |
1.16 |
1/4 |
FEM-251-6FO-NL |
.562-18 UNF |
2.08 |
27mm |
1.16 |
3/8 |
FEM-371-6FP-NL |
.375-18 NPSF |
2.89 |
30mm |
1.26 |
3/8 |
FEM-371-8FO-NL |
.750-16 UNF |
2.89 |
30mm |
1.26 |
1/2 |
FEM-501-8FP-NL |
.500-14 NPSF |
3.04 |
1.25 |
1.54 |
1/2 |
FEM-501-8FO-NL |
.750-16 UNF |
2.96 |
1.25 |
1.54 |
1/2 |
FEM-501-10FO-NL |
.875-14 UNF |
3.04 |
1.25 |
1.54 |
1/2 |
FEM-501-12FO-NL |
1.062-12 UN |
3.24 |
1.25 |
1.54 |
5/8 |
FEM-621-12FO-NL |
1.062-12 UNF |
3.70 |
40mm |
1.69 |
3/4 |
FEM-751-12FP-NL |
.750-14 NPSF |
3.95 |
46mm |
1.97 |
3/4 |
FEM-751-12FO-NL |
1.062-12 UNF |
3.95 |
46mm |
1.97 |
1 |
FEM-1001-16FP-NL |
1.000-11.5 NPSF |
4.21 |
55mm |
2.36 |
1 |
FEM-1001-16FO-NL |
1.312-12 UNF |
4.21 |
55mm |
2.36 |
Standard Port Configurations
FP - Female Pipe Thread
FO - Female Straight Thread
BMF - Bulkhead Male Flare 37° JIC
BMS - Bulkhead Male ORFS
Other Fitting Port Configurations are available upon request.
Body Size (in.) |
1/4 |
3/8 |
1/2 |
5/8 |
3/4 |
1 |
Rated Pressure (PSI) |
5000 |
5000 |
3625 |
3625 |
3625 |
2900 |
Rated Flow (GPM) 3 6 |
3 |
6 |
12 |
20 |
26 |
50 |
Temperature Range (std.seals) |
-40 to +250° F |
|||||
Spillage (ML) |
0.015 |
0.015 |
0.02 |
0.03 |
0.15 |
0.2 |
Air Inclusion (ML) |
0.02 |
0.02 |
0.07 |
0.07 |
0.1 |
0.15 |
