150 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions
150 NB to IS 1239-2: Min outside diameter 178 mm; Min length 96 mm; Max inside dia of internal parallel thread 161.088 mm.
Key to dimensions
- A
- Centre to face (elbows, tees) — see each table for its own lettering
150 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions — all dimensions
IS 1239-2 Table 6 — steel (mild steel) sockets (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Min outside diameter | 178 mm | 7.01 in |
| Min length | 96 mm | 3.78 in |
| Max inside dia of internal parallel thread | 161.088 mm | 6.34 in |
IS 1239-2 Table 8 — elbows, tees and crosses, equal (screwed) (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Min length, centre to face | 160 mm | 6.30 in |
IS 1239-2 Table 4 — bends 90° and springs (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Bend 90° A approx centre to face | 622 mm | 24.49 in |
| B | 718 mm | 28.27 in |
| R approx radius | 540 mm | 21.26 in |
| Spring 112.5° C centre to face | 572 mm | 22.52 in |
| Spring 135° D | 540 mm | 21.26 in |
| Spring 157.5° E | 527 mm | 20.75 in |
IS 1239-2 Table 5 — return bends (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| A approx centre to centre | 914 mm | 35.98 in |
| B approx back to face | 692 mm | 27.24 in |
IS 1239-2 Table 2 — running, close taper and barrel nipples (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Running nipple A | 78 mm | 3.07 in |
| Close taper nipple B | 96 mm | 3.78 in |
| Barrel nipple C | 127 mm | 5.00 in |
IS 1239-2 Table 28 — hexagon nipples, equal (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| L basic gauge length + clearance | 45 mm | 1.77 in |
| T hexagon thickness | 25 mm | 0.984 in |
| A min overall length | 115 mm | 4.53 in |
| C max bore | 150 mm | 5.91 in |
| B width across flats | 168 mm | 6.61 in |
Values are nominal, from IS 1239 Part 2 Steel Pipe Fitting Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
150 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions: common questions
What are the 150 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions?
150 NB to IS 1239-2: Min outside diameter 178 mm; Min length 96 mm; Max inside dia of internal parallel thread 161.088 mm.
Does Teshi Group manufacture 150 NB forged fittings?
Yes. Teshi Group is an OEM manufacturer in India of forged fittings to IS 1239-2, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 150 NB dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full IS 1239 Part 2 Steel Pipe Fitting Dimensions chart.
Need 150 NB forged fittings?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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Share your drawing, bill of materials or technical requirements with the Teshi team.