General Purpose Hydraulic Quick Couplers | Parker SM Series Nipples

Body

Size

(in.)

Part

No.

Steel

Thread

Size

Overall

Length

D

Dimensions (in.)

Exposed*

Dimensions

E

Wrench

Flats

F

Largest

Diameter

G

1/4

SM-252-4FP

1/4-18 NPTF

1.49

0.50

0.75

0.87

1/4

SM-252-4FB

G1/4 BSPP

1.64

0.65

0.75

0.87

1/4

SM-252-6FP

3/8-18 NPTF

1.64

0.81

0.94

1.08

1/4

SM-252-6FB

G3/8 BSPP

1.64

0.81

0.94

1.08

1/4

SM-252-6FO

9/16-18ORB

1.64

0.55

0.75

0.87

1/2

SM-502-8FO

3/4-16ORB

2.14

0.72

1.06

1.23

1/2

SM-502-8FP

1/2-14 NPTF

2.01

0.45

1.06

1.23

1/2

SM-502-8FB

G1/2 BSPP

2.01

0.60

1.06

1.23

1/2

SM-502-12FP

3/4-14 NPTF

2.31

0.90

1.37

1.59

1/2

SM-502-12FB

G3/4 BSPP

2.63

1.07

1.37

1.59

3/4

SM-752-12FO

1 1/16-12ORB

2.60

0.39

1.50

1.73

3/4

SM-752-12FP

3/4-14 NPTF

2.48

0.39

1.50

1.73

3/4

SM-752-12FB

G3/4 BSPP

2.60

0.53

1.50

1.73

3/4

SM-752-16FP

1-11 1/2 NPTF

2.69

0.67

1.62

1.88

3/4

SM-752-16FB

G 1 BSPP

2.69

0.67

1.62

1.88

3/4

SM-752-16FO

1-5/16-12ORB

2.69

0.67

1.62

1.88

Optional Seals Suffix (Standard seals are Nitrile)

E4 

Fluorocarbon

E5 

Ethylene Propylene (EPR)

E12 

Neoprene

 E12

Perfluoroelastomer (Contact Factory for Seal Options)

Body Size (in.)

1/4

1/2

3/4

Rated Pressure (PSI)

6,000

6,000

4,500

Rated Flow (GPM)

3

12

28

Temperature Range

(Nitrile Seals)

-40° to +250°F