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Technical
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941
DPL418
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Thread Chart for Hydraulic Fittings
Dash Size 2
4
6
8
10
12
16
20
24
32
40
48
JIC 37 degree
Flare Thread 5/16-24 7/16-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12
---
---
SAE
O-ring Thread ---
7/16-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12
---
---
NPTF
Pipe Thread 1/8-27 1/4-18 3/8-18 1/2-14
---
3/4-14 1-11 1/2 1 1/4-11
1/2
1 1/2-11
1/2 2-11 1/2
---
---
NPSM
Swivel Thread ---
1/4-18 3/8-18 1/2-14
---
3/4-14 1-11 1/2 1 1/4-11
1/2
1 1/2-11
1/2 2-11 1/2
---
---
Flat Face
Thread
---
9/16-18 11/16-16 13/16-16 1-14 1 3/16-12 1 7/16-12 ---
---
---
---
---
Code 61 Flange
Head OD
---
---
---
1.19
---
1.50
1.75
2.00
2.38
2.81
3.31
4.0
Code 62 Flange
Head OD
---
---
---
1.25
---
1.62
1.88
2.12
2.50
3.12
---
---
British Thread
BSPP/BSPT ---
1/4-19 3/8-19 1/2-14
_
3/4-14
1-11
---
---
---
---
---
Fittings Size Chart
Male NPT Thread Sizes
1/8
3/8
1/2
3/4
2
1/4
1
1¼
1½
Male NST Thread Sizes
2½
1½
Thread Information