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National Aerospace Standard NAS620C6L Crescent Steel Washer, Flat
PART #: SGP142420MFR PART #: NAS620C6LOur Price: $0.26 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620-416L Steel Washer, Flat
PART #: SGP142200MFR PART #: NAS620-416LOur Price: $0.32 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620-416 Steel Washer, Flat
PART #: SGP142199MFR PART #: NAS620-416Our Price: $0.47 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620-4L Steel Washer, Flat
PART #: SGP142201MFR PART #: NAS620-4LOur Price: $0.32 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620-5 Steel Washer, Flat
PART #: SGP142202MFR PART #: NAS620-5Our Price: $0.69 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620C416 Crescent Steel Washer, Flat
PART #: SGP142416MFR PART #: NAS620C416Our Price: $0.42 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620C4L Crescent Steel Washer, Flat
PART #: SGP142417MFR PART #: NAS620C4LOur Price: $0.11 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620A10L Aluminum Washer, Flat
PART #: SGP181295MFR PART #: NAS620A10LOur Price: $0.18 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620A4 Aluminum Washer, Flat
PART #: SGP181296MFR PART #: NAS620A4Our Price: $1.11 (Each)QTY: Add to Cart -
National Aerospace Standard NAS620B5L Brass Washer, Flat
PART #: SGP175780MFR PART #: NAS620B5LQTY: Add to Quote -
National Aerospace Standard NAS620C416L Crescent Steel Washer, Flat
PART #: SGP178227MFR PART #: NAS620C416LOur Price: $0.53 (Each)QTY: Add to Cart -
SPS Technologies 62523-22-145.1 Steel Washer, Flat
PART #: SGP56652MFR PART #: 62523-22-145-1QTY: Add to Quote
SkyGeek knows aviation involves managing an assortment of tasks and functions. Certainly pilots and mechanics know this. With so much on their plate it's easy to forget about small parts including thin, round plates. That's right, we're talking about washers—those disk-shaped pieces of hardware.
Washers work by attaching themselves to fasteners such as screws or nuts. They serve as a means of distributing a threaded fastener's load and can also be used as spacers and as a way to curb vibrational forces.
Washers can be organized into types—plain washers, lock washers, and special washers. Plain washers are placed under nuts in order to provide a smooth bearing surface; they also act as a shim for a bolt's thread and its adjacent nut. Whenever castellated or self-locking nuts are not used, lock washers are often employed; they are anti-vibration, i.e. they create enough friction to keep a nut in place. "Special washers" is a term that has a broad scope, meaning it refers to washers designed for special applications. Thus, there is no single special washer but many including ball seat and socket washers—just to name a few.
A washer's material is useful in determining the appropriate one. Generally they come in metal (steel, brass, copper) but can also come in plastic or rubber. When choosing a washer, also consider these variables: thickness, inner diameter, and outer diameter. Because SkyGeek carries a growing inventory of washers that meet or exceed U.S. military specifications, we suggest you click on each series of washer and compare the differences so that you can make the best purchase.