332912: Fluid Power Valve and Hose Fitting Manufacturing

What this code covers

Census assigns 332912 to plants that make valves and hose fittings for fluid power systems. The examples in the definition are hydraulic and pneumatic valves, hydraulic and pneumatic hose and tube fittings, hose assemblies for fluid power, and fluid power aircraft subassemblies. Industrial process valves and plumbing fittings sit in other codes.

For defense and aerospace that means check, relief, shuttle, and selector valves, flared and flareless tube fittings, quick disconnects, hose assemblies with crimped or swaged ends, manifolds with cartridge valves, and hydraulic subassemblies for aircraft, ground vehicles, and ground support equipment.

What federal buyers typically ask for

DLA Aviation and DLA Land and Maritime post most of the valve and fitting notices, usually by national stock number with a fixed quantity or a long-term contract for repeat items. Navy and Army aviation activities post aircraft hydraulic components for overhaul lines. Depots and NASA centers post hose assemblies and fittings for ground and test equipment.

Many aircraft hydraulic items are critical safety items, so source approval is common and an unapproved quote is not evaluated. Standard fittings and hoses often must come from a qualified products list. Expect proof and burst pressure testing, leakage tests, cleanliness requirements for hydraulic parts, first article on a new source, and certificates of conformance with material certs. Steel, titanium, and nickel alloy bodies carry the DFARS specialty metals clause. Drawings are frequently export controlled.

Small business set-asides are common on standard fittings and hose assemblies. Critical valves often go unrestricted to whoever holds approval, which makes the approval itself the real barrier.