NPS 3/8 Schedule 5 Pipe
0.675 in (17.1 mm) outside diameter on a 0.049 in (1.2 mm) wall, giving a 0.577 in (14.7 mm) bore and 0.33 lb/ft (0.49 kg/m) empty. ASME B36.10M.
- Nominal size
- NPS 3/8 (DN 10)
- Schedule
- Schedule 5
- Outside diameter
- 0.675 in (17.1 mm)
- Wall thickness
- 0.049 in (1.2 mm)
- Inside diameter
- 0.577 in (14.7 mm)
- Weight, empty
- 0.33 lb/ft (0.49 kg/m)
- Weight, water filled
- 0.44 lb/ft (0.66 kg/m)
- Flow area
- 0.261 in² (169 mm²)
No other designation in NPS 3/8 shares this wall thickness, so Schedule 5 is unambiguous in this size.
Every schedule in NPS 3/8
Dimensions are given in inches, with the millimetre equivalent beneath in grey.
| Schedule | Wall thickness | Inside diameter | Weight, empty | Water (US gal/ft) |
|---|---|---|---|---|
| Sch 5 this page | 0.0491.24 mm | 0.57714.66 mm | 0.330.49 kg/m | 0.014 |
| Sch 10 | 0.0651.65 mm | 0.54513.84 mm | 0.420.63 kg/m | 0.012 |
| Sch 40 | 0.0912.31 mm | 0.49312.52 mm | 0.570.84 kg/m | 0.010 |
| STD | 0.0912.31 mm | 0.49312.52 mm | 0.570.84 kg/m | 0.010 |
| Sch 80 | 0.1263.20 mm | 0.42310.74 mm | 0.741.10 kg/m | 0.007 |
| XS | 0.1263.20 mm | 0.42310.74 mm | 0.741.10 kg/m | 0.007 |
Weight is plain-end carbon steel, w = 10.6802 × t × (OD − t) lb/ft.
Common questions
What is the inside diameter of NPS 3/8 schedule 5 pipe?
0.577 in (14.7 mm). The outside diameter is fixed at 0.675 in (17.1 mm) by ASME B36.10M, and the 0.049 in (1.2 mm) wall takes 0.098 in off it — 0.049 in from each side — leaving that bore.
How much does NPS 3/8 schedule 5 pipe weigh?
0.33 lb/ft (0.49 kg/m) empty, as plain-end carbon steel. Full of water it comes to 0.44 lb/ft (0.66 kg/m), because the bore holds 0.014 US gallons per foot. One short ton of this pipe is about 6105 ft.
Does NPS 3/8 schedule 5 pipe use special flanges or fittings?
No. Flanges and buttweld fittings are dimensioned from NPS, so NPS 3/8 hardware fits this pipe in any schedule. The one thing that does follow the schedule is the bore of a weld neck flange or a fitting end prep, which has to be 0.577 in (14.7 mm) to match.