The fastener sleeves covered by this specification are intended for structural and non-structural application in aerospace structures and other military equipment. The function of the sleeves is to serve as a repair procedure for holes which have become damaged, elongated, or corroded and to protect the structure in soft or brittle material. The sleeve is intended to increase the integrity of the overall joint not the strength of the individual fastener.

Sleeves are manufactured with proper head configuration and diameter but must be adjusted to the correct length for each individual fastener.

Fastener sleeves must be installed with reasonable care to insure that they seal properly, inhibit corrosion, and restore the structural integrity of joints in modification, repair, or in the original manufacture of aerospace or military hardware. The installation information and the processing specifications should be followed. Tools are available to facilitate and insure proper installation of the sleeve.