Replacement Suspension, Head Protection Suspension Type Ratchet (4-Point), Fits Hat Size 6-1/2 to 8, For Use With North A89R Hard Hats, Compatible Hard Hat/Helmet Brand Name HONEYWELL, Compatible Hard Hat/Helmet Grainger Part Number 24M977, 24M978, 24M979, 6XNE7, 9M913, 9U904