Parker 51 Series British Pipe Field Attachable Fittings

This page is for reference only. The 51 Series Fittings are now bein phased out and replaced by Series 51R. 

Parker 2D951 Field Attachable Fittings

BSP Male

Parker 51 series 2D951 field attachable fitting

For available sizes, refer to the table below. 

 


Steel
Part
Number

Thread
Size

Hose
I.D.

A

Cutoff
Allow.
B

H
Hex

W
Hex

Hose Fitting

 

inch

inch

mm

inch

mm

mm

mm

2D951-2-3 (+)

PF 1/8-28

3/16

1.73

44

0.94

24

14

16

2D951-4-3 (+)

PF 1/4-19

3/16

1.93

49

1.14

29

19

16

2D951-4-4 (+)

PF 1/4-19

1/4

2.13

54

1.14

29

19

17

2D951-6-5 (+)

PF 3/8-19

5/16

2.28

58

1.18

30

22

19

2D951-6-6

PF 3/8-19

3/8

2.44

62

1.34

34

22

22

2D951-8-8

PF 1/2-14

1/2

2.87

73

1.61

41

27

27

2D951-12-12

PF 3/4-14

3/4

3.19

81

1.61

41

32

35

2D951-16-16

PF 1-11

1

3.74

95

1.93

49

41

43

 

 

Parker 29251 Field Attachable Fittings

BSP Swivel Female, Ballnose

Parker 51 series 29251 field attachable fitting

For available sizes, refer to the table below. 

 



Steel
Part
Number

BSP
Thread
Size

Hose
I.D.

A

Cutoff
Allow.
B

H
Hex

J Hex

W
Hex

Hose Fitting

 

inch

inch

mm

inch

mm

mm

 

mm

29251-4-3 (+)

PF 1/4-19

3/16

1.77

45

0.98

25

17

19

16

29251-4-4 (+)

PF 1/4-19

1/4

1.85

47

1.10

28

17

19

17

29251-6-5 (+)

PF 3/8-19

5/16

1.89

48

0.94

24

19

22

19

29251-6-6

PF 3/8-19

3/8

2.48

63

1.38

35

19

22

22

29251-8-8

PF 1/2-14

1/2

1.91

74

1.61

41

27

27

27

29251-12-12

PF 3/4-14

3/4

3.07

78

1.46

37

36

36

35

29251-16-16

PF 1-11

1

3.54

90

1.73

44

36

41

43

 

 

Parker 2B151 Field Attachable Fittings

BSP Swivel Female 45° Elbow, Ballnose

Parker 51 series 2B151 field attachable fitting

For available sizes, refer to the table below. 

 


Steel
Part
Number

BSP
Thread
Size

Tube
I.D.

A

Cutoff
Allow.
B

E

H
Hex

J
Hex

W
Hex

Hose Fitting

 

inch

inch

mm

inch

mm

inch

mm

mm

 

mm

2B151-4-3 (+)

PF 1/4-19

3/16

2.28

58

1.50

38

0.55

14

14

17

16

2B151-4-4 (+)

PF 1/4-19

1/4

2.32

59

1.57

40

0.55

14

14

17

17

2B151-6-5 (+)

PF 3/8-19

5/16

2.76

70

1.76

44

0.55

14

14

19

19

2B151-12-12 (+)

PF 3/4-14

3/4

3.94

100

2.36

60

0.79

20

30

32

35

2B151-16-16 (+)

PF 1-11

1

4.80

122

2.99

76

1.02

26

32

41

43

 

 

Parker 2B251 Field Attachable Fittings

BSP Swivel Female 90° Elbow, Ballnose

Parker 51 series 2B251 field attachable fitting

For available sizes, refer to the table below. 

 


Steel
Part
Number

BSP
Thread
Size

Tube
I.D.

A

Cutoff
Allow.
B

E

H
Hex

J
Hex

W
Hex

Hose Fitting

 

inch

inch

mm

inch

mm

inch

mm

mm

 

mm

2B251-4-3

PF 1/4-19

3/16

2.28

58

1.30

33

0.55

14

14

17

16

2B251-4-4 (+)

PF 1/4-19

1/4

2.32

59

1.30

33

1.02

26

14

17

17

2B251-6-5 (+)

PF 3/8-19

5/16

2.60

66

1.57

40

1.34

34

14

19

19

2B251-6-6

PF 3/8-19

3/8

2.95

75

1.73

44

1.22

31

17

19

22

2B251-8-8

PF 1/2-14

1/2

3.50

89

2.09

53

1.50

38

22

27

27

2B251-12-12 (+)

PF 3/4-14

3/4

4.09

104

2.52

64

1.85

47

30

32

35

2B251-16-16 (+)

PF 1-11

1

4.72

120

2.91

74

2.44

62

32

41

43

Fast Answers