Hard Hat Suspension, Head Protection Suspension Type Pinlock (4-Point), Fits Hat Size One Size Fits Most, For Use With A79 Hard Hats, Compatible Hard Hat/Helmet Brand Name HONEYWELL, Compatible Hard Hat/Helmet Grainger Part Number 8AP86, 8AP87, 8AP91, 8AP92, 9CLE5, 9F362, 9K321, 9NUU9, 9UAC7