MS9549-10 - Washer

Part number MS9549-10 is a military standard flat washer manufactured from 321 corrosion-resistant stainless steel (CRES) and intended for use with 1/4-inch diameter fasteners in aerospace and military hardware applications.  

Specifications

• Type: Flat washer
• Material: 321 Stainless Steel (CRES), AMS 5510
• Inside Diameter (Hole): 0.276 in. (7.01 mm nominal)
• Outside Diameter: 0.500 in. (12.70 mm nominal)
• Thickness: 0.028–0.036 in. (0.71–0.91 mm)
• Metric Approximation: ID 7.98 mm × OD 12.73 mm × Thickness 0.85 mm 
• Shape: Round, flat
• Finish: 63 micro-inch surface finish
• NSN: 5310-00-938-8387

Features

• Corrosion-resistant stainless steel construction
• Provides load distribution under bolt heads and nuts
• Aerospace-qualified military standard hardware
• Suitable for high-temperature and vibration environments
• Compatible with 1/4-inch aircraft fasteners and hardware systems