65 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions
65 NB to IS 1239-2: Min outside diameter 84 mm; Min length 69 mm; Max inside dia of internal parallel thread 72.442 mm.
Key to dimensions
- A
- Centre to face (elbows, tees) — see each table for its own lettering
65 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 | 84 mm | 3.31 in |
| Min length | 69 mm | 2.72 in |
| Max inside dia of internal parallel thread | 72.442 mm | 2.85 in |
IS 1239-2 Table 8 — elbows, tees and crosses, equal (screwed) (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Min length, centre to face | 76 mm | 2.99 in |
IS 1239-2 Table 4 — bends 90° and springs (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Bend 90° A approx centre to face | 248 mm | 9.76 in |
| B | 321 mm | 12.64 in |
| R approx radius | 197 mm | 7.76 in |
| Spring 112.5° C centre to face | 222 mm | 8.74 in |
| Spring 135° D | 213 mm | 8.39 in |
| Spring 157.5° E | 206 mm | 8.11 in |
IS 1239-2 Table 5 — return bends (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| A approx centre to centre | 305 mm | 12.01 in |
| B approx back to face | 292 mm | 11.50 in |
IS 1239-2 Table 2 — running, close taper and barrel nipples (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Running nipple A | 51 mm | 2.01 in |
| Close taper nipple B | 69 mm | 2.72 in |
| Barrel nipple C | 89 mm | 3.50 in |
IS 1239-2 Table 28 — hexagon nipples, equal (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| L basic gauge length + clearance | 32 mm | 1.26 in |
| T hexagon thickness | 16 mm | 0.630 in |
| A min overall length | 80 mm | 3.15 in |
| C max bore | 64 mm | 2.52 in |
| B width across flats | 79 mm | 3.11 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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Other sizes — IS 1239 Part 2 Steel Pipe Fitting Dimensions
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65 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions: common questions
What are the 65 NB IS 1239 Part 2 Steel Pipe Fitting Dimensions?
65 NB to IS 1239-2: Min outside diameter 84 mm; Min length 69 mm; Max inside dia of internal parallel thread 72.442 mm.
Does Teshi Group manufacture 65 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 65 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 65 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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