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