Details
GSA6-1/2-90 is a Dzus Type GSA assembly, a special grommet permanently attached to a Type AJ6-1/2 oval head stud, with a .900" working length. The period Dzus catalog describes the Type GSA as a special grommet attached to a Type AJ fastener, with Type GSF being the equivalent attached to a Type FJ flush head fastener. Because the grommet and stud are supplied as one captive unit, the stud cannot be lost when the panel is removed, which is why this style shows up on frequently opened access panels.
ABOUT: Dzus fasteners are quarter-turn, self-locking panel fasteners made of heat-treated, cadmium plated nickel steel, used with an aluminum grommet and a music wire spring. The stud passes through the removable panel, the grommet locates and protects the panel hole, and the spring is riveted to the underlying structure where it takes the load and provides the locking action. They are used on covers, plates, cowlings, and similar panels that require quick removal and replacement. Worn, bent, or broken parts must be replaced to maintain clamp load and vibration resistance.
Part Number: GSA6-1/2-90
Part Type: Fastener Assembly, Grommet Attached to Stud
Type: GSA, special grommet attached to a Type AJ stud
Mfg: Dzus Fastener Co., Inc.
Size Family: 6-1/2 (13/32" body diameter)
Working Length (L): .900"
Compatible Spring: Type S6 or S6A (1-3/8 in rivet centers)
Aircraft: various
Condition: NS, shelf wear due to age
DETAILS: The GSA grommet is a press fit into the panel and the drilling and countersink data differs from a standard GA full grommet installation, so refer to the Dzus installation data for GSA and GSF grommets before drilling. Do not substitute a loose AJ stud plus GA grommet for a GSA assembly without confirming panel hole size.
For a full breakdown of Dzus type codes, size families, and how to select a stud, grommet, and spring together, see our blog post About Dzus Fasteners.
Images for reference only.
Warranty Information
