Made of aluminum, this pipe is lightweight with good corrosion resistance. Also known as Schedule 40 pipe, it is for use in low-pressure applications. It is seamless, which provides a smooth interior for unrestricted flow.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

NPT Fully Threaded

For Use With: Air, Oil, Water

Specifications Met: ASTM B241

Fittings: Use Class 150 aluminum

Flanges: Use Class 125 aluminum

Pipe

Size Lg. Construction Each

1/8 3/4" Seamless 44665K111 $2.69

1/4 7/8" Seamless 44665K131 2.94

3/8 1" Seamless 44665K151 3.66

1/2 1 1/8" Seamless 44665K171 4.50

3/4 1 3/8" Seamless 44665K191 6.12

1 1 1/2" Seamless 44665K221 6.44

1 1/4 1 5/8" Seamless 44665K241 6.75

1 1/2 1 3/4" Seamless 44665K261 8.16

2 2" Seamless 44665K281 14.34

2 1/2 2 1/2" Seamless 44665K278 30.75

3 2 5/8" Seamless 44665K315 38.19

4 2 7/8" Seamless 44665K324 52.88

NPT Threaded on Both Ends— 1/8 to 1 Pipe Size

For Use With: Air, Oil, Water

Specifications Met: ASTM B241

Fittings: Use Class 150 aluminum

Flanges: Use Class 125 aluminum

Lg. Construction Each

1/8 Pipe Size

1 1/2" Seamless 44665K161 $2.25

2" Seamless 44665K113 2.69

2 1/2" Seamless 44665K121 2.97

3" Seamless 44665K115 3.38

3 1/2" Seamless 44665K141 3.84

4" Seamless 44665K117 4.12

4 1/2" Seamless 44665K621 4.50

5" Seamless 44665K308 4.84

5 1/2" Seamless 44665K162 5.19

6" Seamless 44665K119 5.47

6 1/2" Seamless 44665K163 6.56

7" Seamless 44665K164 7.22

8" Seamless 44665K411 6.94

9" Seamless 44665K165 9.16

10" Seamless 44665K511 8.81

11" Seamless 44665K166 11.31

12" Seamless 44665K541 10.47

14" Seamless 5038K362 13.16

16" Seamless 5038K363 15.04

18" Seamless 5038K71 14.62

20" Seamless 5038K364 18.82

22" Seamless 5038K365 20.81

24" Seamless 5038K84 19.51

36" Seamless 5038K31 27.20

48" Seamless 5038K16 39.13

60" Seamless 5038K69 56.58

72" Seamless 5038K45 63.23

120" Seamless 5038K131 113.46

1/4 Pipe Size

1 1/2" Seamless 44665K167 2.97

2" Seamless 44665K133 3.44

2 1/2" Seamless 44665K122 4.09

3" Seamless 44665K135 4.59

3 1/2" Seamless 44665K142 5.25

4" Seamless 44665K137 5.84

4 1/2" Seamless 44665K622 6.44

5" Seamless 44665K318 6.94

5 1/2" Seamless 44665K168 7.44

6" Seamless 44665K139 8.00

6 1/2" Seamless 44665K169 9.59

7" Seamless 44665K181 10.38

8" Seamless 44665K412 9.73

9" Seamless 44665K182 13.44

10" Seamless 44665K512 12.62

11" Seamless 44665K183 15.38

12" Seamless 44665K542 13.97

14" Seamless 5038K372 19.09

16" Seamless 5038K373 21.83

18" Seamless 5038K72 21.19

20" Seamless 5038K374 27.34

22" Seamless 5038K375 30.04

24" Seamless 5038K85 28.25

36" Seamless 5038K32 40.69

48" Seamless 5038K17 65.65

60" Seamless 5038K97 81.89

72" Seamless 5038K9 81.34

120" Seamless 5038K132 163.91

Lg. Construction Each

3/8 Pipe Size

1 1/2" Seamless 44665K184 $3.69

2" Seamless 44665K153 4.41

2 1/2" Seamless 44665K123 5.25

3" Seamless 44665K155 6.00

3 1/2" Seamless 44665K143 6.88

4" Seamless 44665K157 7.66

4 1/2" Seamless 44665K623 8.44

5" Seamless 44665K328 9.12

5 1/2" Seamless 44665K185 10.00

6" Seamless 44665K159 10.72

6 1/2" Seamless 44665K186 12.78

7" Seamless 44665K187 13.94

8" Seamless 44665K413 13.62

9" Seamless 44665K188 17.81

10" Seamless 44665K513 16.94

11" Seamless 44665K189 21.84

12" Seamless 44665K543 20.41

14" Seamless 5038K382 25.59

16" Seamless 5038K383 29.15

18" Seamless 5038K73 28.27

20" Seamless 5038K384 36.42

22" Seamless 5038K385 40.02

24" Seamless 5038K86 37.70

36" Seamless 5038K33 62.49

48" Seamless 5038K18 87.40

60" Seamless 5038K98 109.26

72" Seamless 5038K15 125.91

120" Seamless 5038K133 218.54

1/2 Pipe Size

1 1/2" Seamless 44665K211 4.94

2" Seamless 44665K173 5.66

2 1/2" Seamless 44665K124 6.62

3" Seamless 44665K175 7.72

3 1/2" Seamless 44665K144 8.94

4" Seamless 44665K177 10.09

4 1/2" Seamless 44665K624 11.09

5" Seamless 44665K338 12.22

5 1/2" Seamless 44665K212 13.25

6" Seamless 44665K179 14.19

6 1/2" Seamless 44665K213 17.16

7" Seamless 44665K214 18.44

8" Seamless 44665K414 18.03

9" Seamless 44665K215 23.88

10" Seamless 44665K514 22.53

11" Seamless 44665K216 29.00

12" Seamless 44665K544 27.06

14" Seamless 5038K392 33.88

16" Seamless 5038K393 38.74

18" Seamless 5038K74 37.67

20" Seamless 5038K394 48.46

22" Seamless 5038K395 53.31

24" Seamless 5038K87 50.13

36" Seamless 5038K34 71.86

48" Seamless 5038K27 100.37

60" Seamless 5038K121 145.31

72" Seamless 5038K1 144.71

120" Seamless 5038K134 290.80

Lg. Construction Each

3/4 Pipe Size

1 1/2" Seamless 44665K217 $6.44

2" Seamless 44665K193 6.44

2 1/2" Seamless 44665K125 7.66

3" Seamless 44665K195 8.88

3 1/2" Seamless 44665K145 10.28

4" Seamless 44665K197 11.59

4 1/2" Seamless 44665K625 12.78

5" Seamless 44665K348 13.97

5 1/2" Seamless 44665K218 15.19

6" Seamless 44665K199 16.31

6 1/2" Seamless 44665K219 19.66

7" Seamless 44665K231 21.22

8" Seamless 44665K415 20.66

9" Seamless 44665K232 27.25

10" Seamless 44665K515 25.81

11" Seamless 44665K233 33.47

12" Seamless 44665K545 31.00

14" Seamless 5038K412 38.81

16" Seamless 5038K413 44.49

18" Seamless 5038K75 43.17

20" Seamless 5038K414 55.63

22" Seamless 5038K415 61.16

24" Seamless 5038K88 57.54

36" Seamless 5038K35 76.63

48" Seamless 5038K44 115.23

60" Seamless 5038K122 166.86

72" Seamless 5038K2 154.26

120" Seamless 5038K135 333.77

1 Pipe Size

2" Seamless 44665K223 6.94

2 1/2" Seamless 44665K126 8.16

3" Seamless 44665K225 9.34

3 1/2" Seamless 44665K146 10.94

4" Seamless 44665K227 12.28

4 1/2" Seamless 44665K626 13.47

5" Seamless 44665K358 14.75

5 1/2" Seamless 44665K234 15.91

6" Seamless 44665K229 17.09

6 1/2" Seamless 44665K235 20.56

7" Seamless 44665K236 22.25

8" Seamless 44665K416 21.66

9" Seamless 44665K237 28.47

10" Seamless 44665K516 27.06

11" Seamless 44665K238 34.88

12" Seamless 44665K546 32.53

14" Seamless 5038K422 40.69

16" Seamless 5038K423 46.46

18" Seamless 5038K76 45.17

20" Seamless 5038K424 58.17

22" Seamless 5038K425 63.94

24" Seamless 5038K89 60.31

36" Seamless 5038K36 79.51

48" Seamless 5038K46 139.69

60" Seamless 5038K123 150.74

72" Seamless 5038K3 160.11

120" Seamless 5038K136 349.40

NPT Threaded on Both Ends— 1 1/4 to 6 Pipe Size

For Use With: Air, Oil, Water

Specifications Met: ASTM B241

Fittings: Use Class 150 aluminum

Flanges: Use Class 125 aluminum

Lg. Construction Each

1 1/4 Pipe Size

2" Seamless 44665K243 $7.66

2 1/2" Seamless 44665K127 8.44

3" Seamless 44665K245 9.66

3 1/2" Seamless 44665K147 11.22

4" Seamless 44665K247 12.59

4 1/2" Seamless 44665K627 13.75

5" Seamless 44665K368 15.00

5 1/2" Seamless 44665K251 16.19

6" Seamless 44665K249 17.47

6 1/2" Seamless 44665K252 20.94

7" Seamless 44665K253 22.53

8" Seamless 44665K417 22.03

9" Seamless 44665K254 29.06

10" Seamless 44665K517 27.59

11" Seamless 44665K255 35.53

12" Seamless 44665K547 33.03

14" Seamless 5038K432 41.50

16" Seamless 5038K433 47.46

18" Seamless 5038K77 46.07

20" Seamless 5038K434 59.29

22" Seamless 5038K435 65.14

24" Seamless 5038K91 61.40

36" Seamless 5038K37 90.03

48" Seamless 5038K47 142.34

60" Seamless 5038K124 177.89

72" Seamless 5038K4 210.11

120" Seamless 5038K137 355.86

1 1/2 Pipe Size

2" Seamless 44665K263 8.88

2 1/2" Seamless 44665K128 10.28

3" Seamless 44665K265 11.59

3 1/2" Seamless 44665K148 13.41

4" Seamless 44665K267 14.84

4 1/2" Seamless 44665K628 16.31

5" Seamless 44665K369 17.75

5 1/2" Seamless 44665K256 19.31

6" Seamless 44665K269 20.66

6 1/2" Seamless 44665K257 24.88

7" Seamless 44665K258 26.84

8" Seamless 44665K418 26.25

9" Seamless 44665K271 34.44

10" Seamless 44665K518 32.81

11" Seamless 44665K272 42.25

12" Seamless 44665K548 39.31

14" Seamless 5038K442 49.24

16" Seamless 5038K443 56.23

18" Seamless 5038K78 54.69

20" Seamless 5038K444 70.34

22" Seamless 5038K445 77.37

24" Seamless 5038K92 72.89

36" Seamless 5038K38 103.40

48" Seamless 5038K48 145.80

60" Seamless 5038K125 182.17

72" Seamless 5038K5 207.46

120" Seamless 5038K138 422.29

Lg. Construction Each

2 Pipe Size

2 1/2" Seamless 44665K129 $16.78

3" Seamless 44665K285 18.44

3 1/2" Seamless 44665K149 21.34

4" Seamless 44665K287 23.72

4 1/2" Seamless 44665K629 26.06

5" Seamless 44665K379 28.47

5 1/2" Seamless 44665K273 30.91

6" Seamless 44665K289 33.25

6 1/2" Seamless 44665K274 39.94

7" Seamless 44665K275 43.12

8" Seamless 44665K419 38.19

9" Seamless 44665K276 55.50

10" Seamless 44665K519 52.56

11" Seamless 44665K277 62.03

12" Seamless 44665K549 57.69

14" Seamless 5038K452 79.14

16" Seamless 5038K453 90.37

18" Seamless 5038K79 87.74

20" Seamless 5038K454 113.00

22" Seamless 5038K455 124.29

24" Seamless 5038K93 117.00

36" Seamless 5038K39 150.74

48" Seamless 5038K49 271.03

60" Seamless 5038K126 338.94

72" Seamless 5038K6 351.74

120" Seamless 5038K139 677.74

2 1/2 Pipe Size

3" Seamless 44665K295 33.84

3 1/2" Seamless 44665K152 37.75

4" Seamless 44665K297 40.81

4 1/2" Seamless 44665K631 42.16

5" Seamless 44665K389 45.28

5 1/2" Seamless 44665K279 48.34

6" Seamless 44665K299 51.44

6 1/2" Seamless 44665K311 61.88

7" Seamless 44665K312 66.69

8" Seamless 44665K501 59.57

9" Seamless 44665K313 78.46

10" Seamless 44665K531 74.34

11" Seamless 44665K314 95.77

12" Seamless 44665K551 89.29

14" Seamless 5038K462 122.23

16" Seamless 5038K463 132.14

18" Seamless 5038K81 141.00

20" Seamless 5038K464 152.78

22" Seamless 5038K465 167.97

24" Seamless 5038K94 209.54

36" Seamless 5038K41 195.86

48" Seamless 5038K66 419.06

60" Seamless 5038K127 523.91

72" Seamless 5038K7 628.66

120" Seamless 5038K141 759.52

Lg. Construction Each

3 Pipe Size

3" Seamless 44665K305 $41.25

3 1/2" Seamless 44665K154 46.25

4" Seamless 44665K307 50.38

4 1/2" Seamless 44665K632 54.41

5" Seamless 44665K399 58.50

5 1/2" Seamless 44665K316 57.11

6" Seamless 44665K259 60.83

6 1/2" Seamless 44665K319 73.80

7" Seamless 44665K321 79.37

8" Seamless 44665K502 77.03

9" Seamless 44665K322 102.20

10" Seamless 44665K532 95.81

11" Seamless 44665K323 124.91

12" Seamless 44665K552 115.43

14" Seamless 5038K472 139.38

16" Seamless 5038K473 159.40

18" Seamless 5038K82 153.53

20" Seamless 5038K474 199.18

22" Seamless 5038K475 219.10

24" Seamless 5038K95 233.91

36" Seamless 5038K42 262.71

48" Seamless 5038K67 542.11

60" Seamless 5038K128 677.57

72" Seamless 5038K8 711.45

120" Seamless 5038K142 1,195.20

4 Pipe Size

3" Seamless 44665K325 56.97

3 1/2" Seamless 44665K326 60.44

4" Seamless 44665K317 61.46

4 1/2" Seamless 44665K327 66.77

5" Seamless 44665K409 72.06

5 1/2" Seamless 44665K329 77.26

6" Seamless 44665K239 82.54

6 1/2" Seamless 44665K331 99.29

7" Seamless 44665K332 106.94

8" Seamless 44665K503 104.49

9" Seamless 44665K333 137.57

10" Seamless 44665K533 130.57

11" Seamless 44665K334 154.89

12" Seamless 44665K553 144.24

14" Seamless 5038K482 187.60

16" Seamless 5038K483 214.40

18" Seamless 5038K83 208.28

20" Seamless 5038K484 268.07

22" Seamless 5038K485 294.90

24" Seamless 5038K96 367.57

36" Seamless 5038K43 423.43

48" Seamless 5038K68 735.26

60" Seamless 5038K129 804.27

72" Seamless 5038K11 965.17

120" Seamless 5038K143 1,608.53

Lg. Construction Each

6 Pipe Size

4" Seamless 44665K335 $431.32

4 1/2" Seamless 44665K336 450.47

5" Seamless 44665K337 512.25

5 1/2" Seamless 44665K339 530.35

6" Seamless 44665K341 473.55

6 1/2" Seamless 44665K342 566.77

7" Seamless 44665K343 584.90

8" Seamless 44665K344 536.33

9" Seamless 44665K345 657.65

10" Seamless 44665K346 694.05

11" Seamless 44665K347 731.23

12" Seamless 44665K349 661.77

BSPT × NPT Fully Threaded

For Use With: Air, Oil, Water

Specifications Met: ASME B1.20.1, ASTM B241

Pipe

Size Lg. Construction Each

1/8 3/4" Seamless 2744K11 $3.84

1/4 7/8" Seamless 2744K15 4.22

3/8 1" Seamless 2744K19 5.18

1/2 1 1/8" Seamless 2744K24 6.45

3/4 1 3/8" Seamless 2744K28 8.63

1 1 1/2" Seamless 2744K33 9.11

1 1/2 1 3/4" Seamless 2744K36 11.66

2 2" Seamless 2744K39 20.41

BSPT × NPT Threaded on Both Ends

For Use With: Air, Oil, Water

Specifications Met: ASME B1.20.1, ASTM B241

Lg. Construction Each

1/8 Pipe Size

1 1/2" Seamless 2744K12 $3.34

2" Seamless 2744K13 3.78

3" Seamless 2744K14 4.85

1/4 Pipe Size

1 1/2" Seamless 2744K16 4.22

2" Seamless 2744K17 5.03

3" Seamless 2744K18 6.56

3/8 Pipe Size

1 1/2" Seamless 2744K21 5.26

2" Seamless 2744K22 6.42

3" Seamless 2744K23 8.52

1/2 Pipe Size

1 1/2" Seamless 2744K25 6.95

2" Seamless 2744K26 8.01

3" Seamless 2744K27 10.94

3/4 Pipe Size

1 1/2" Seamless 2744K29 9.02

2" Seamless 2744K31 9.13

3" Seamless 2744K32 12.51

1 Pipe Size

2" Seamless 2744K34 9.88

3" Seamless 2744K35 13.38

1 1/2 Pipe Size

2" Seamless 2744K37 16.39

3" Seamless 2744K38 21.03

2 Pipe Size

3" Seamless 2744K41 26.06