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NPT, ISO Tapered, ISO Parallel, Metric and SAE/MS thread standards. Filter by fitting type, size and thread. Expand any row for full specs and to request a quote.
| Part No | Fitting Type | Material | P1 Size | P1 Thread | P2 Size | P2 Thread | Length | Quote | |
|---|---|---|---|---|---|---|---|---|---|
| PA-12G-SS | Adapters | SS | 3/4 | ISO Parallel (BSPP) | — | — | — | ||
| PA-12N-12G-SS | Adapters | SS | 3/4 | NPT | 3/4 | ISO Parallel (BSPP) | — | ||
| PA-12N-12R-SS | Adapters | SS | 3/4 | NPT | 3/4 | ISO Tapered (BSPT) | — | ||
| PA-12N-17S-SS | Adapters | SS | 3/4 | NPT | 1 1/16-12 | SAE/MS Straight | — | ||
| PA-12N-SS | Adapters | SS | 3/4 | NPT | — | — | — | ||
| PA-12R-12N-SS | Adapters | SS | 3/4 | ISO Tapered (BSPT) | 3/4 | NPT | — | ||
| PA-12R-SS | Adapters | SS | 3/4 | ISO Tapered (BSPT) | — | — | — | ||
| PA-16G-SS | Adapters | SS | 1 | ISO Parallel (BSPP) | — | — | — | ||
| PA-16N-16G-SS | Adapters | SS | 1 | NPT | 1 | ISO Parallel (BSPP) | — | ||
| PA-16N-16R-SS | Adapters | SS | 1 | NPT | 1 | ISO Tapered (BSPT) | — | ||
| PA-16N-21S-SS | Adapters | SS | 1 | NPT | 1 5/16-12 | SAE/MS Straight | — | ||
| PA-16N-SS | Adapters | SS | 1 | NPT | — | — | — | ||
| PA-16R-16N-SS | Adapters | SS | 1 | ISO Tapered (BSPT) | 1 | NPT | — | ||
| PA-16R-SS | Adapters | SS | 1 | ISO Tapered (BSPT) | — | — | — | ||
| PA-2G-2N-SS | Adapters | SS | 1/8 | ISO Parallel (BSPP) | 1/8 | NPT | — | ||
| PA-2G-SS | Adapters | SS | 1/8 | ISO Parallel (BSPP) | — | — | — | ||
| PA-2N-2G-SS | Adapters | SS | 1/8 | NPT | 1/8 | ISO Parallel (BSPP) | — | ||
| PA-2N-2R-SS | Adapters | SS | 1/8 | NPT | 1/8 | ISO Tapered (BSPT) | — | ||
| PA-2N-SS | Adapters | SS | 1/8 | NPT | — | — | — | ||
| PA-2R-2N-SS | Adapters | SS | 1/8 | ISO Tapered (BSPT) | 1/8 | NPT | — | ||
| PA-2R-SS | Adapters | SS | 1/8 | ISO Tapered (BSPT) | — | — | — | ||
| PA-4G-4N-SS | Adapters | SS | 1/4 | ISO Parallel (BSPP) | 1/4 | NPT | — | ||
| PA-4G-SS | Adapters | SS | 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PA-4N-4G-SS | Adapters | SS | 1/4 | NPT | 1/4 | ISO Parallel (BSPP) | — | ||
| PA-4N-4R-SS | Adapters | SS | 1/4 | NPT | 1/4 | ISO Tapered (BSPT) | — | ||
| PA-4N-7S-SS | Adapters | SS | 1/4 | NPT | 7/16-20 | SAE/MS Straight | — | ||
| PA-4N-SS | Adapters | SS | 1/4 | NPT | — | — | — | ||
| PA-4R-4N-SS | Adapters | SS | 1/4 | ISO Tapered (BSPT) | 1/4 | NPT | — | ||
| PA-4R-SS | Adapters | SS | 1/4 | ISO Tapered (BSPT) | — | — | — | ||
| PA-6G-6N-SS | Adapters | SS | 3/8 | ISO Parallel (BSPP) | 3/8 | NPT | — | ||
| PA-6G-SS | Adapters | SS | 3/8 | ISO Parallel (BSPP) | — | — | — | ||
| PA-6N-6G-SS | Adapters | SS | 3/8 | NPT | 3/8 | ISO Parallel (BSPP) | — | ||
| PA-6N-6R-SS | Adapters | SS | 3/8 | NPT | 3/8 | ISO Tapered (BSPT) | — | ||
| PA-6N-9S-SS | Adapters | SS | 3/8 | NPT | 9/16-18 | SAE/MS Straight | — | ||
| PA-6N-SS | Adapters | SS | 3/8 | NPT | — | — | — | ||
| PA-6R-6N-SS | Adapters | SS | 3/8 | ISO Tapered (BSPT) | 3/8 | NPT | — | ||
| PA-6R-SS | Adapters | SS | 3/8 | ISO Tapered (BSPT) | — | — | — | ||
| PA-8G-8N-SS | Adapters | SS | 1/2 | ISO Parallel (BSPP) | 1/2 | NPT | — | ||
| PA-8G-SS | Adapters | SS | 1/2 | ISO Parallel (BSPP) | — | — | — | ||
| PA-8N-12S-SS | Adapters | SS | 1/2 | NPT | 3/4-16 | SAE/MS Straight | — | ||
| PA-8N-8G-SS | Adapters | SS | 1/2 | NPT | 1/2 | ISO Parallel (BSPP) | — | ||
| PA-8N-8R-SS | Adapters | SS | 1/2 | NPT | 1/2 | ISO Tapered (BSPT) | — | ||
| PA-8N-SS | Adapters | SS | 1/2 | NPT | — | — | — | ||
| PA-8R-8N-SS | Adapters | SS | 1/2 | ISO Tapered (BSPT) | 1/2 | NPT | — | ||
| PA-8R-SS | Adapters | SS | 1/2 | ISO Tapered (BSPT) | — | — | — | ||
| PBHU-10G-SS | Bulkhead Union | SS | 5/8 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-12G-SS | Bulkhead Union | SS | 3/4 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-16G-SS | Bulkhead Union | SS | 1 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-20G-SS | Bulkhead Union | SS | 1 1/4 | ISO Parallel (BSPP) | — | — | — | ||
| PBHU-24G-SS | Bulkhead Union | SS | 1 1/2 | ISO Parallel (BSPP) | — | — | — |
Instrumentation pipe fittings join small-bore threaded pipe, valves, gauges and transmitters without welding. Unlike tube fittings, which grip the outside of tubing, these fittings connect thread to thread, so they are used wherever equipment presents a threaded port, such as valve bodies, manifolds, process connections and gauge take-offs.
This page lists the full SS316 range in one table: hex, long, close, reducing and long pipe nipples; hex and reducing hex couplings; adapters, reducing adapters and reducing bushings; hex plugs, hollow hex plugs and pipe caps; male, female, street and union elbows; male, female, branch, run, street and union tees plus crosses; and unions, bulkhead unions, swivel unions and swivel connectors.
Threads cover NPT, ISO tapered (BSPT), ISO parallel (BSPP), metric and SAE/MS straight, with sizes from 1/16" to 2". Choosing the correct thread is the main decision. Tapered threads seal on the thread flanks with sealant or tape, while parallel threads need a bonded washer, O-ring or face seal to achieve a pressure seal.
