National Engineered Fasteners is a distributor of Military Spec, aircraft & aerospace washers. Types include spring washers, flat washers, lock washers, and specialty washers. Spring washers include one, two, three & four wave washers & belleville washers. Materials include stainless steel, aluminum, beryllium, brass, copper, Delrin®, fiber, high carbon steel, lead, mica, Monel®, Mylar®, neoprene, nylon, phenolic, phosphor bronze, steel & PTFE. Industries mil washers are served to include military, aerospace, defense, mechanical, original equipment manufacturers, petro-chemical, power generation & mass transit. All mil washers are dfar compliant.