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ANSI B16.5 Class 900 Welding Neck Flanges
ANSI B16.5 Class 900 Flanges
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- All dimensions are in inches.
- These flanges will be furnished with a 1/4" raised face unless otherwise specified.
- Flat face option available.
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Item # |
Nominal Pipe Size |
Outside Diameter (O) |
Thickness (T) |
Raised Face Diameter (R) |
Length Thru Hub (Y) |
Hub Diameter (X) |
Bore (B) |
Approximate Weight |
Bolt Circle (C) |
Number of Holes |
Diameter of Holes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 03900WNAN | Nominal Pipe Size N/A 1/2 | Outside Diameter (O) N/A 4.75 in | Thickness (T) N/A 0.88 in | Raised Face Diameter (R) N/A 1.38 in | Length Thru Hub (Y) N/A 2.38 in | Hub Diameter (X) N/A 1.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 5 lb | Bolt Circle (C) N/A 3.25 in | Number of Holes N/A 4 | Diameter of Holes N/A 0.88 in |
| 04900WNAN | Nominal Pipe Size N/A 3/4 | Outside Diameter (O) N/A 5.13 in | Thickness (T) N/A 1.00 in | Raised Face Diameter (R) N/A 1.69 in | Length Thru Hub (Y) N/A 2.75 in | Hub Diameter (X) N/A 1.75 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 6 lb | Bolt Circle (C) N/A 3.50 in | Number of Holes N/A 4 | Diameter of Holes N/A 0.88 in |
| 05900WNAN | Nominal Pipe Size N/A 1 | Outside Diameter (O) N/A 5.88 in | Thickness (T) N/A 1.13 in | Raised Face Diameter (R) N/A 2.00 in | Length Thru Hub (Y) N/A 2.88 in | Hub Diameter (X) N/A 2.06 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 9 lb | Bolt Circle (C) N/A 4.00 in | Number of Holes N/A 4 | Diameter of Holes N/A 1.00 in |
| 06900WNAN | Nominal Pipe Size N/A 1 1/4 | Outside Diameter (O) N/A 6.25 in | Thickness (T) N/A 1.13 in | Raised Face Diameter (R) N/A 2.50 in | Length Thru Hub (Y) N/A 2.88 in | Hub Diameter (X) N/A 2.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 10 lb | Bolt Circle (C) N/A 4.38 in | Number of Holes N/A 4 | Diameter of Holes N/A 1.00 in |
| 08900WNAN | Nominal Pipe Size N/A 1 1/2 | Outside Diameter (O) N/A 7.00 in | Thickness (T) N/A 1.25 in | Raised Face Diameter (R) N/A 2.88 in | Length Thru Hub (Y) N/A 3.25 in | Hub Diameter (X) N/A 2.75 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 13 lb | Bolt Circle (C) N/A 4.88 in | Number of Holes N/A 4 | Diameter of Holes N/A 1.13 in |
| 10900WNAN | Nominal Pipe Size N/A 2 | Outside Diameter (O) N/A 8.50 in | Thickness (T) N/A 1.50 in | Raised Face Diameter (R) N/A 3.63 in | Length Thru Hub (Y) N/A 4.00 in | Hub Diameter (X) N/A 4.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 25 lb | Bolt Circle (C) N/A 6.50 in | Number of Holes N/A 8 | Diameter of Holes N/A 1.00 in |
| 12900WNAN | Nominal Pipe Size N/A 2 1/2 | Outside Diameter (O) N/A 9.63 in | Thickness (T) N/A 1.63 in | Raised Face Diameter (R) N/A 4.13 in | Length Thru Hub (Y) N/A 4.06 in | Hub Diameter (X) N/A 4.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 36 lb | Bolt Circle (C) N/A 7.50 in | Number of Holes N/A 8 | Diameter of Holes N/A 1.13 in |
| 14900WNAN | Nominal Pipe Size N/A 3 | Outside Diameter (O) N/A 9.50 in | Thickness (T) N/A 1.50 in | Raised Face Diameter (R) N/A 5.00 in | Length Thru Hub (Y) N/A 4.00 in | Hub Diameter (X) N/A 5.00 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 31 lb | Bolt Circle (C) N/A 7.50 in | Number of Holes N/A 8 | Diameter of Holes N/A 1.00 in |
| 16900WNAN | Nominal Pipe Size N/A 4 | Outside Diameter (O) N/A 11.50 in | Thickness (T) N/A 1.75 in | Raised Face Diameter (R) N/A 6.19 in | Length Thru Hub (Y) N/A 4.50 in | Hub Diameter (X) N/A 6.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 53 lb | Bolt Circle (C) N/A 9.25 in | Number of Holes N/A 8 | Diameter of Holes N/A 1.25 in |
| 18900WNAN | Nominal Pipe Size N/A 5 | Outside Diameter (O) N/A 13.75 in | Thickness (T) N/A 2.00 in | Raised Face Diameter (R) N/A 7.31 in | Length Thru Hub (Y) N/A 5.00 in | Hub Diameter (X) N/A 7.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 86 lb | Bolt Circle (C) N/A 11.00 in | Number of Holes N/A 8 | Diameter of Holes N/A 1.38 in |
| 20900WNAN | Nominal Pipe Size N/A 6 | Outside Diameter (O) N/A 15.00 in | Thickness (T) N/A 2.19 in | Raised Face Diameter (R) N/A 8.50 in | Length Thru Hub (Y) N/A 5.50 in | Hub Diameter (X) N/A 9.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 110 lb | Bolt Circle (C) N/A 12.50 in | Number of Holes N/A 12 | Diameter of Holes N/A 1.25 in |
| 24900WNAN | Nominal Pipe Size N/A 8 | Outside Diameter (O) N/A 18.50 in | Thickness (T) N/A 2.50 in | Raised Face Diameter (R) N/A 10.63 in | Length Thru Hub (Y) N/A 6.38 in | Hub Diameter (X) N/A 11.75 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 175 lb | Bolt Circle (C) N/A 15.50 in | Number of Holes N/A 12 | Diameter of Holes N/A 1.50 in |
| 0H900WNAN | Nominal Pipe Size N/A 10 | Outside Diameter (O) N/A 21.50 in | Thickness (T) N/A 2.75 in | Raised Face Diameter (R) N/A 12.75 in | Length Thru Hub (Y) N/A 7.25 in | Hub Diameter (X) N/A 14.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 260 lb | Bolt Circle (C) N/A 18.50 in | Number of Holes N/A 16 | Diameter of Holes N/A 1.50 in |
| 3Q900WNAN | Nominal Pipe Size N/A 12 | Outside Diameter (O) N/A 24.00 in | Thickness (T) N/A 3.13 in | Raised Face Diameter (R) N/A 15.00 in | Length Thru Hub (Y) N/A 7.88 in | Hub Diameter (X) N/A 16.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 325 lb | Bolt Circle (C) N/A 21.00 in | Number of Holes N/A 20 | Diameter of Holes N/A 1.50 in |
| 01900WNAN | Nominal Pipe Size N/A 14 | Outside Diameter (O) N/A 25.25 in | Thickness (T) N/A 3.38 in | Raised Face Diameter (R) N/A 16.25 in | Length Thru Hub (Y) N/A 8.38 in | Hub Diameter (X) N/A 17.75 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 400 lb | Bolt Circle (C) N/A 22.00 in | Number of Holes N/A 20 | Diameter of Holes N/A 1.63 in |
| 1Q900WNAN | Nominal Pipe Size N/A 16 | Outside Diameter (O) N/A 27.75 in | Thickness (T) N/A 3.50 in | Raised Face Diameter (R) N/A 18.50 in | Length Thru Hub (Y) N/A 8.50 in | Hub Diameter (X) N/A 20.00 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 495 lb | Bolt Circle (C) N/A 24.25 in | Number of Holes N/A 20 | Diameter of Holes N/A 1.75 in |
| 1H900WNAN | Nominal Pipe Size N/A 18 | Outside Diameter (O) N/A 31.00 in | Thickness (T) N/A 4.00 in | Raised Face Diameter (R) N/A 21.00 in | Length Thru Hub (Y) N/A 9.00 in | Hub Diameter (X) N/A 22.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 680 lb | Bolt Circle (C) N/A 27.00 in | Number of Holes N/A 20 | Diameter of Holes N/A 2.00 in |
| 02900WNAN | Nominal Pipe Size N/A 20 | Outside Diameter (O) N/A 33.75 in | Thickness (T) N/A 4.25 in | Raised Face Diameter (R) N/A 23.00 in | Length Thru Hub (Y) N/A 9.75 in | Hub Diameter (X) N/A 24.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 830 lb | Bolt Circle (C) N/A 29.50 in | Number of Holes N/A 20 | Diameter of Holes N/A 2.13 in |
| 2H900WNAN | Nominal Pipe Size N/A 24 | Outside Diameter (O) N/A 41.00 in | Thickness (T) N/A 5.50 in | Raised Face Diameter (R) N/A 27.25 in | Length Thru Hub (Y) N/A 11.50 in | Hub Diameter (X) N/A 29.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1500 lb | Bolt Circle (C) N/A 35.50 in | Number of Holes N/A 20 | Diameter of Holes N/A 2.63 in |
