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End Fitting Specification
- NPT Taper Threads to American National Standard Pipe Taper Thread design to ANSI B2.1
- BSPT Threads to British Standard Pipe Taper Thread design to BS21
Alternatives- Parallel Threads, Metric Threads and Others
End Fitting Materials
- Fittings in Grade 316L SS
- Ferrules, most in Grade 304 SS, some sizes in Grade 316L SS
Alternatives- Fittings in Zinc Plated Carbon Steel
Fixed Male NPT or BSPT
 
| Nominal Hose Size |
*Fitting Length A |
Inside Diameter I |
| in |
mm |
in |
mm |
in |
mm |
| 1/2 |
15 |
2 5/8 |
67 |
0.38 |
9.53 |
| 3/4 |
20 |
3 1/2 |
89 |
0.63 |
15.88 |
| 1 |
25 |
3 7/8 |
98 |
0.80 |
20.24 |
| 1 1/4 |
32 |
4 3/8 |
110 |
1.03 |
26.21 |
| 1 1/2 |
40 |
5 1/8 |
130 |
1.25 |
31.75 |
| 2 |
50 |
5 1/2 |
140 |
1.75 |
44.45 |
| 2 1/2 |
65 |
6 3/4 |
170 |
2.25 |
57.15 |
| 3 |
80 |
6 3/4 |
170 |
2.63 |
66.70 |
| 4 |
100 |
7 1/2 |
190 |
3.50 |
88.90 |
Fixed Female NPT
 
| Nominal Hose Size |
NPT or BSPT
Thread Size |
*Fitting Length A |
Fitting Inside
Diameter I |
| in |
mm |
in |
in |
mm |
in |
mm |
| 1/2 |
13 |
1/2 |
2.72 |
69 |
0.38 |
9.53 |
| 3/4 |
20 |
3/4 |
3.54 |
90 |
0.63 |
15.88 |
| 1 |
25 |
1 |
3.82 |
97 |
0.80 |
20.24 |
| 1 1/2 |
40 |
1 1/2 |
4.96 |
126 |
1.25 |
31.75 |
| 2 |
50 |
2 |
5.16 |
131 |
1.75 |
44.45 |
*Fitting Lengths listed are for Corroflon braided only hose grades (SS,PB,HB,KYB). Approximately 33% longer lengths apply to the rubber covered hose grades (RC,SI,FP).
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