MilSpec A-Spec Fasteners

 ...are common to BeechCraft / Raytheon airplanes and latches on many cowlings. The design consists of a simple stud, with a pin pressed into the shank. The pin must be pressed in after the stud is inserted through the panel hole and removed from the stud prior to removing the fastener from the panel. Some applications use a flare type grommet in the hole to protect it from wear due to vibration. Unlike other fastener styles, this grommet usually does not require replacement when installing new studs. However, we do carry new grommets in the event that replacement is required.

MilSpec A-Spec fasteners are made in various sizes and styles. The stud's head diameter determines the stud series. Each stud series is available in either a countersunk (flush) or a round head style. Stud diameters and head styles are indicated by the Base Part Number. Studs come in different Total Lengths (blank lengths) which are indicated by the first dash number.

Each stud blank length can have up to ten (10) second dash numbers, or grip sizes. The second dash number indicates the maximum grip range in .010" increments. A-Spec fasteners have the least grip range of any quick release fastener. Therefore, it is important to measure accurately when using them.

* NOTE :  MilSpec has just developed a new Pin removal and installation tool for these fasteners. If new grommets are necessary, a grommet flaring tool is required. Both of these tools can be found below, as well as on our main Tools Page.