The National Highway Traffic Safety Administration announced Friday the recall of tether kits for Snug Seat Inc., child safety seats.

The recall involves 1,146 tether anchor kits for the Gorilla child safety seat, model number 200-1000, and Spelcast child safety seat, model number 600-1000, manufactured between July 26, 2002, and Jan. 15, 2003.

This kit enables the purchaser to mount a tether anchor in a vehicle that is not already equipped with an anchor. The kit contains a washer that does not comply with salt spray requirements, according to the NHTSA.

The safety seats were sold only through Durable Medical Equipment Dealers for use by children with special needs. The part number of the tether anchor kit is FW-50250-12-ZY.

Snug Seat will automatically mail free metal ring kits and repair instructions to registered customers. Customers can also contact Snug Seat at (800) 336-7684 to request a free repair kit.

Customers should continue using their seats pending receipt of the replacement parts, the NHTSA said.