When sourcing pipe nipples for plumbing, oil & gas, or industrial projects, nothing matters more than knowing the product meets recognized quality standards. Poorly manufactured nipples can lead to leaks, pressure failures, and costly downtime. In this guide, we break down the five most important standards every buyer and engineer should understand — including ASTM A733, MSS SP-95, ASME B1.20.1, and others — so you can make informed decisions and choose a reliable pipe nipple

When contractors, fire-sprinkler installers, and plumbing distributors need pipe nipples, they turn to one name "PCFSPN". As the leading pipe nipple supplier shipping to the USA and Europe, we don’t just promise speed – we guarantee it. Most orders leave our warehouse the same day and land on your job site in 3–7 days, even for custom lengths. Here are the top 10 reasons thousands of customers say we’re the fastest in the industry. 1. 500,000+ Pipe Nipples in Stock Right Now