External National Pipe Thread Adapters

These injection-molded adapters make connections to female 1/8" and 1/4" National Pipe Thread (NPT) ports.

Molded from PEEK™ polymer, Upchurch Scientific® NPT Adapters are durable and chemically resistant. We provide a variety of female (internal) threads, as well as a male (external) threaded version, suitable for most low pressure fittings on the market today.

All of our NPT adapters have a 0.062" (1.60 mm) thru-hole, except U-504 and U-514 which have 0.125" (3.18 mm) thru-holes. All included fittings are for 1/8" OD tubing, except U-504 and U-514, which come with fittings for 3/16" OD tubing.

Our U-500 and U-510 NPT Adapters are great for attaching 1/8" OD fluoropolymer sparging lines to sparging gas tank regulating valves. Simply thread the appropriately-sized NPT Adapter into the valve's receiving port and then attach your sparging tubing to the adapter body using the fittings provided.

F = Female (internal) threads; M = Male (external) threads.

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Item #

Item Name

Color

Swept Volume

Tubing Outside Diameter

List Price

U-510

Adapt Asy PEEK 1/8 NPTx1/4-28

Red

17.3 µL

41647 in

$16.61
U-511

Adpt Body PEEK 1/8NPTx1/4-28M

Red

40.2 µL

N/A

$10.46
U-512

Adapt Assy PEEK 1/8 NPT - M6

Black

17.3 µL

41647 in

$16.61
U-513

Adapt Asy PEEK 1/8 NPT 5/16-24

Natural

17.3 µL

41647 in

$16.61
U-514

Adapt Asy PEEK 1/8 NPT 5/16-24

Natural

70.4 µL

41714 in

$16.61
U-500

Adapt Asy PEEK 1/4 NPT 1/4-28

Red

17.3 µL

41647 in

$16.61
U-501

Adpt Body PEEK 1/4NPTx1/4-28M

Red

40.2 µL

N/A

$10.46
U-502

Adapt Assy PEEK 1/4 NPT - M6

Black

17.3 µL

41647 in

$24.92
U-503

Adapt Asy PEEK 1/4 NPT 5/16-24

Natural

17.3 µL

41647 in

$16.61
U-504

Adapt Asy PEEK 1/4 NPT 5/16-24

Natural

70.4 µL

41714 in

$16.61
U-502-01

Adpt Body PEEK 1/4NPTxM6F

N/A

N/A

N/A

$10.15
U-500-01

Adpt Body PEEK 1/4NPTx1/4-28F

N/A

N/A

N/A

$10.46
U-500-01-PP

Adapter Polypropylene Body Only 1/4-28 Female to

N/A

N/A

N/A

$4.38
U-503-01

Adpt Body PEEK 1/4NPTx5/16-24F

N/A

N/A

N/A

$10.46
U-504-01

Adpt Body PEEK 1/4NPTx5/16-24F

N/A

N/A

1/4 in in

$10.46
U-510-01

Adpt Body PEEK 1/8NPTx1/4-28F

Red

N/A

41647 in

$10.46
U-510-1/16

1/8 NPT Adapter To 1/4-28 Female Red PEEK for 1/16 Tubing. Includes P 200 and P 201 fittings.

Red

N/A

41647 in

$13.91
U-512-01

Adpt Body PEEK 1/8NPTxM6F

Black

N/A

41647 in

$10.46
U-513-01

Adpt Body PEEK 1/8NPTx5/16-24F

N/A

N/A

41647 in

$10.15
U-514-01

Adpt Bdy PEEK 1/8NPTx5/16-24F

N/A

N/A

41647 in

$10.46