Welcome to Essex Brass

Essex Brass is pleased to announce that Flywheel Supply LLC has purchased the product lines of Essex Brass and Flywheel Supply is committed to making Essex Brass’s parts in the same fashion as they have been since the beginning in 1901. Please check Flywheel Supply’s website (www.EssexBrassParts.com) for more details. You can call (866) 657-5335 EXT 3 to speak with Zach directly or email him at Zach@Flywheel-Supply.com Fax: (888) 247-3892

Flywheel Supply is a family owned company located in northwest Iowa. They produce over 3,000 parts in their machine shop for their product line and are adding all the Essex Brass parts to their product offering.

WG104A Shock-Proof Gauge


WG104A Shock-proof gauge.  This unit meets the high shock requirements of Mil-S-901C, and the vibration requirements of Mil-Std-167, for Type 1 vibration up to 25c.p.s.  (certified test reports available upon request).

Unit per Mil-l-20037-B

Navy approved.

Automatic type – quick closing.

Each unit individually hydrostatically tested at 450 psi.

Unit is of bronze construction with “monel” trim, “viton” seals, and “polycarbonate” tube.

Flanges are integral to bodies and are per A.S.A. standards for 3/4″ 150# flanges.  Different flanges available upon request.

Unless otherwise specified, unit will be shipped complete with “polycarbonate” tube for 24″ centers.

Upon request, this unit can also be supplied with “Pyrex” high pressure gauge glass with “Class B” protective shield.

**When ordering gauge glass and guard rods, the center-to-center distance between the upper and lower valve connections must be specified.