Professional Grade MS51848-31 Mil-Spec Split Lock Washers 5/16″ Steel Black Phosphate (5000 / Pkg.)

Specs

Size: 5/16 inch

Type: Mil-Spec Split Lock Washer

Material: Steel

Finish: Black Phosphate

Package quantity: 5,000 per package

Features

Split lock design applies continuous tension to mating surfaces, reducing loosening under vibration and dynamic loading.

Steel construction provides high strength for fastening in rugged environments.

Black Phosphate finish offers durability with low reflectivity for field and industrial use.

Bulk pack of five thousand supports efficient replenishment on production lines and large assemblies.

Physical

Finish: Black Phosphate

Material: Steel

Nominal bolt size: 5/16 inch

Package: 5,000 washers per package

Industry Used In

Aerospace manufacturing and maintenance

Defense and military equipment assembly

Automotive manufacturing and heavy machinery

Industrial equipment upkeep and fabrication

Oil, gas, and mining equipment construction

Construction and heavy equipment assemblies