R331-05

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RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.

IMPORTANT NOTICE

1. You’ll receive an order information email in your inbox. (Please remember to check the spam folder if you didn’t hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Product Technical Specifications: Model R331-05

Category	Specification	Details / Description
General Information	Model Number	R331-05
	Product Name	Split Lock Washer, Carbon Steel
	Product Type	Helical Spring Lock Washer
	Material	Medium Carbon Steel (1070)
	Finish	Plain (Unyielded)
	Standards	ASTM F959, ASME B18.21.1
Dimensional Data	Nominal Size	#5 (For #5 screw size)
	Inside Diameter (ID)	0.106 in (2.69 mm)
	Outside Diameter (OD)	0.218 in (5.54 mm)
	Thickness (Wire Dia.)	0.032 in (0.81 mm)
	Free Height	0.064 in (1.63 mm)
Performance & Properties	Hardness	HRC 44 – 50
	Surface Finish	Plain (Unyielded)
	Spring Action	Yes (Provides prevailing torque)
	Function	Prevents loosening from vibration
	Tensile Strength	185,000 PSI (Minimum)
Packaging	Package Quantity	100 pieces per box
	Bulk Packaging	Available (e.g., 1,000 pieces per bag)
	Gross Weight (100 pcs)	0.02 kg (0.044 lbs)
Application & Use	Primary Function	Locking element for nuts and bolts, maintains clamp load under vibration
	Common Applications	Automotive, electronics, machinery, appliances
	Temperature Range	-20°C to 120°C (-4°F to 248°F)