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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Standard-Wall Brass Threaded Pipe Nipples and Pipe
Also known as Schedule 40, this pipe is for use in low-pressure flow applications. It is brass, which offers good corrosion resistance. Pipe is seamless and has a smooth interior for unrestricted flow.
To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.
For technical drawings and 3-D models, click on a part number.
NPT Threaded on Both Ends
- For Use With: Air, Drinking Water, Natural Gas, Steam, Oil, Water
- Specifications Met:
Lengths 12" and Shorter: ASTM B687, NSF/ANSI 61
Lengths 14" and Longer: ASTM B687, Fed. Spec. WW-N-351C, NSF/ANSI 61 - Fittings: Use Class 125 brass or bronze
- Flanges: Use Class 150 brass or bronze
| Lg. | Construction | Each | |
1/8 Pipe Size  | |||
|---|---|---|---|
| 14" | Seamless | 00000000 | 000000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 00000 |
| 48" | Seamless | 0000000 | 00000 |
| 72" | Seamless | 0000000 | 00000 |
1/4 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 00000 |
| 48" | Seamless | 0000000 | 00000 |
| 60" | Seamless | 0000000 | 00000 |
| 72" | Seamless | 0000000 | 00000 |
3/8 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 00000 |
| 48" | Seamless | 0000000 | 00000 |
| 60" | Seamless | 0000000 | 00000 |
| 72" | Seamless | 0000000 | 000000 |
1/2 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 00000 |
| 48" | Seamless | 0000000 | 00000 |
| 60" | Seamless | 0000000 | 000000 |
| 72" | Seamless | 0000000 | 000000 |
3/4 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 00000 |
| 48" | Seamless | 0000000 | 000000 |
| 60" | Seamless | 0000000 | 000000 |
| 72" | Seamless | 0000000 | 000000 |
| Lg. | Construction | Each | |
1 Pipe Size | |||
|---|---|---|---|
| 14" | Seamless | 00000000 | 000000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 00000 |
| 22" | Seamless | 00000000 | 00000 |
| 24" | Seamless | 0000000 | 00000 |
| 36" | Seamless | 0000000 | 000000 |
| 48" | Seamless | 0000000 | 000000 |
| 60" | Seamless | 0000000 | 000000 |
| 72" | Seamless | 0000000 | 000000 |
1 1/4 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 00000 |
| 18" | Seamless | 0000000 | 00000 |
| 20" | Seamless | 00000000 | 000000 |
| 22" | Seamless | 00000000 | 000000 |
| 24" | Seamless | 0000000 | 000000 |
| 36" | Seamless | 0000000 | 000000 |
| 48" | Seamless | 0000000 | 000000 |
| 72" | Seamless | 0000000 | 000000 |
1 1/2 Pipe Size | |||
| 14" | Seamless | 00000000 | 00000 |
| 16" | Seamless | 00000000 | 000000 |
| 18" | Seamless | 0000000 | 000000 |
| 20" | Seamless | 00000000 | 000000 |
| 22" | Seamless | 00000000 | 000000 |
| 24" | Seamless | 0000000 | 000000 |
| 36" | Seamless | 0000000 | 000000 |
| 48" | Seamless | 0000000 | 000000 |
| 60" | Seamless | 0000000 | 000000 |
2 Pipe Size | |||
| 14" | Seamless | 00000000 | 000000 |
| 16" | Seamless | 00000000 | 000000 |
| 18" | Seamless | 0000000 | 000000 |
| 20" | Seamless | 00000000 | 000000 |
| 22" | Seamless | 00000000 | 000000 |
| 24" | Seamless | 0000000 | 000000 |
| 36" | Seamless | 0000000 | 000000 |
| 48" | Seamless | 0000000 | 000000 |
| 60" | Seamless | 0000000 | 000000 |
| 72" | Seamless | 0000000 | 000000 |
2 1/2 Pipe Size | |||
| 18" | Seamless | 0000000 | 000000 |
| 24" | Seamless | 0000000 | 000000 |
Standard-Wall Brass Threaded Pipe Nipple and Pipe Assortments
- For Use With: Air, Drinking Water, Natural Gas, Oil, Steam, Water
- Specifications Met: ASME B1.20.1, ASTM B687, Fed. Spec. WW-N-351C, NSF/ANSI 61
- For Fitting Class: 125
Keep various lengths of brass pipe on hand for applications requiring good corrosion resistance. The pipe in these assortments is threaded, so you can take apart its connections for maintenance and repair. They’re Schedule 40, so they should be used in low-pressure applications. This pipe is seamless, so it has a smooth interior for unrestricted flow, and it’s stronger than welded pipe.
Fully threaded pipe nipples are also known as a close nipple; they are threaded on each end to the center.
| Pipe Size | No. of Pieces | Includes | Material | Each | |
NPT Male | |||||
|---|---|---|---|---|---|
| 1/4 | 100 | 20 fully threaded 7/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.) | 230 Brass | 0000000 | 0000000 |
| 3/8 | 100 | 20 fully threaded 1" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.) | 230 Brass | 0000000 | 000000 |
| 1/2 | 66 | 6 fully threaded 1 1/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.), | 230 Brass | 0000000 | 000000 |
| 1/2 | 100 | 20 fully threaded 1 1/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.) | 230 Brass | 0000000 | 000000 |
| 3/4 | 66 | 6 fully threaded 1 3/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.), | 230 Brass | 0000000 | 000000 |
| 3/4 | 100 | 20 fully threaded 1 3/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.) | 230 Brass | 0000000 | 000000 |
| 1 | 30 | 3 fully threaded 1 1/2" Lg. nipples 27 threaded-on-both-ends nipples in the following lengths: 2” (3 ea.), 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (3 ea.), 4” (3 ea.), 4 1/2” (3 ea.), 5” (3 ea.), 5 1/2” (3 ea.), 6" (3 ea.) | 230 Brass | 0000000 | 000000 |
| 1 | 75 | 15 fully threaded 1 1/2" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 2” (15 ea.), 2 1/2” (10 ea.), 3” (12 ea.), 3 1/2” (5 ea.), 4” (5 ea.), 4 1/2” (4 ea.), 5” (3 ea.), 5 1/2” (3 ea.), 6" (3 ea.) | 230 Brass | 0000000 | 000000 |
| 1 1/4 | 25 | 6 fully threaded 1 5/8" Lg. nipples 19 threaded-on-both-ends nipples in the following lengths: 2” (4 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.) | 230 Brass | 0000000 | 000000 |
| 1 1/2 | 25 | 5 fully threaded 1 3/4" Lg. nipples 20 threaded-on-both-ends nipples in the following lengths: 2” (5 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.) | 230 Brass | 0000000 | 000000 |
| 2 | 25 | 6 fully threaded 2" Lg. nipples 19 threaded-on-both-ends nipples in the following lengths: 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (2 ea.), 4” (3 ea.), 4 1/2” (1 ea.), 5” (3 ea.), 5 1/2” (1 ea.), 6” (3 ea.) | 230 Brass | 0000000 | 000000 |