15-5 is a vacuum arc remelt grade which offers high strength and hardness. Precipitation Hardening, Martensitic (Magnetic).
Bearing Shaft Quality (BSQ): This finish is commonly used in slip fit bearing applications where the material cannot exceed a specific diameter to function properly. Diameters are produced undersized (-0.005 to 0.0015)

Material: Stainless Steel
Shape: Round Rod
Alloy: 15-5
Temper: Cond A
Diameter: 0.437 (7/16 inch)
Finish: Bearing Shaft Quality
Quantity in Package: piece(s)
Specifications: UNS S15500, AMS 5659
Tolerances: Diameter: (-0.0005 to -0.0015)