NPT Forged Square-Head Plug — Class 3000/6000 (304/304L & 316/316L)
Forged external square-head male NPT pipe plug for high-pressure port closure. Machined from solid forgings per ASME B16.11 (Class 3000/6000) in 304/304L and 316/316L stainless steel covering nominal sizes from 1/8" to 3".
Material options | 304 / 304L / 316 / 316L |
|---|---|
Connection | Male NPT Thread with External Square Wrench Lug |
Pressure class | Class 3000 / 6000 |
Nominal size range | 1/8"–3" (series range) |
Construction | Forged stainless steel per ASME B16.11 & ASTM A182 (Class 3000 & 6000) |
Size
Product overview
Construction, Pressure Class & Material Grades
Designed with Male NPT Thread with External Square Wrench Lug geometry (Forged stainless steel per ASME B16.11 & ASTM A182 (Class 3000 & 6000)), this threaded stainless steel fitting joins mating tapered NPT pipe threads along metal-to-metal thread flanks. Machined from forged stainless steel across Class 3000 configurations in 304 / 304L / 316 / 316L stainless steel.
Series Size Coverage & Thread Make-Up
Nominal pipe thread sizes span 1/8"–3" (series range) across the series; available size options and envelope dimensions vary by stainless steel grade. Verify mating NPT thread specifications and consult the dimensional table for the selected size row before ordering.
Technical specifications
Dimensional Reference · Class 3000/6000 · 304/304L Stainless Steel (1/8"–2")
Class 3000/6000 · 304/304L stainless steel · 1/8"–2"
Units: inches
| Specification reference | Nominal Size | A (IN) | B (IN) | C (IN) |
|---|---|---|---|---|
| CH-F106-001 | 1/8" | 9/32 | 3/8" | 1/4" |
| CH-F106-002 | 1/4" | 3/8" | 7/16" | 1/4 |
| CH-F106-003 | 3/8" | 7/16" | 1/2 | 5/16" |
| CH-F106-004 | 1/2" | 9/16" | 9/16" | 3/8" |
| CH-F106-005 | 3/4" | 5/8" | 5/8" | 7/16" |
| CH-F106-006 | 1" | 13/16" | 3/4" | 1/2" |
| CH-F106-007 | 1-1/4" | 15/16" | 13/16" | 9/16" |
| CH-F106-008 | 1-1/2" | 1-1/8" | 13/16" | 5/8" |
| CH-F106-009 | 2" | 1-5/16" | 7/8" | 11/16" |
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