N5A adjustable 7 1/8-7 3/4+. 8/24/1992 MFG date

N5A adjustable 7 1/8-7 3/4+. 8/24/1992 MFG

The Cairns N5A leather fire helmet is another popular model manufactured by MSA Safety Incorporated. It is designed to meet the safety requirements and standards of firefighting operations, similar to the Cairns N6A Sam Houston helmet.

The specific details you provided indicate that the Cairns N5A helmet you are referring to has an adjustable sizing range of 7 1/8 to 7 3/4+. This means that it can be adjusted to fit head sizes within that range. The helmet’s adjustability allows for a more comfortable and secure fit for firefighters with different head sizes.