Body: Stainless steel, European Standard No. 1.4305 (American Standard Series 303)
Ball: Stainless steel, American Standard Series 440
Spring: Stainless steel, European Standard No. 1.4319 (American Standard Series 302)
Available with or without nylon locking element
"NLE**"(nylon locking element not recommended for
Used for designs where space is limited, but where appreciable plunger travel and high end pressures are required. Permits use where mating surfaces must be flush.