EN

316L (SCS16A) Screw-in Fitting

316L square plug (NPT)

Izutsu's square plugs (NPT) are made of SUS304, 316, and 316L materials, which provide excellent corrosion resistance and a wide range of applications. We have a wide variety of products to meet the diverse needs of our customers. We provide a stable supply of products under reliable control by our own inspection work.

Product Specifications

Max. working pressure S/80 equivalent
material properties SUS304/SUS316/SUS316L
fluid Water, air, oil, solution

Product Details

(Unit: mm)

Nominal size  fixed diameter length
H L
NPT 1/16 S4PN-004 5 13
NPT 1/8 S4PN-006 7 15.5
NPT 1/4 S4PN-008 9.5 19
NPT 3/8 S4PN-010 11 22
NPT 1/2 S4PN-015 14.5 26
NPT 3/4 S4PN-020 16 29
NPT 1 S4PN-025 20.5 33
NPT 11/4 S4PN-032 24 36
NPT 11/2 S4PN-040 28.5 38
NPT 2 S4PN-050 33.5 43
NPT 2 1/2 S4PN-065 38 49
NPT 3 S4PN-080 43 55

We can also manufacture products in sizes not listed, so please feel free to contact us for more information.

Inquiries about
our products and services

Send us your drawing, sketch, or sample, or simply describe what you need, and we will get back to you with a quote.