Heavy duty compression springs are ideally suited for applications where high loads are needed and limited space is available. SPEC heavy duty springs are designed to work in a hole or over a shaft.

Material

	Chrome Silicon per Associated Spring SV 9254 or Chrome Vanadium per SAE 6150 - rectangular wire with rounded corners
	These materials are not recommended for applications where the temperature exceeds 425 deg F (220 deg C).

Direction of Helix - Right Hand

Ends

	Squared and ground
	Free length is for reference only
	O.D. and I.D. are designed to fit in hole or over rod as specified in table. Outside diameters are dimensioned to allow a minimum of .020" clearance in the specified hole diameter when the spring is in the free state
	To determine approximate solid height; see notation number in hole size column. Multiply the free length by the appropriate values that correspond to the notation number 1 x .53 - 2 x .65 - 3 x .73 - 4 x .77

Finishes
Standard finish is that of the normal wire. Due to residual stresses induced during the manufacturing process electroplating is not recommended. Other finishes available on request.

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