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National Aerospace Standard NAS1149D1490H Aluminum Washer, Flat
National Aerospace Standard NAS1149D1490H Aluminum Washer, Flat
PART #: SGP140173MFR PART #: NAS1149D1490HOur Price: $2.03 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D1690J Aluminum Washer, Flat
National Aerospace Standard NAS1149D1690J Aluminum Washer, Flat
PART #: SGP140177MFR PART #: NAS1149D1690JOur Price: $2.35 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D1716H Aluminum Washer, Flat
National Aerospace Standard NAS1149D1716H Aluminum Washer, Flat
PART #: SGP140178MFR PART #: NAS1149D1716HQTY: Add to Quote -
National Aerospace Standard NAS1149D1790J Aluminum Washer, Flat
National Aerospace Standard NAS1149D1790J Aluminum Washer, Flat
PART #: SGP140179MFR PART #: NAS1149D1790JOur Price: $4.53 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D1790K Aluminum Washer, Flat
National Aerospace Standard NAS1149D1790K Aluminum Washer, Flat
PART #: SGP140180MFR PART #: NAS1149D1790KQTY: Add to Quote -
National Aerospace Standard NAS1149D1816K Aluminum Washer, Flat
National Aerospace Standard NAS1149D1816K Aluminum Washer, Flat
PART #: SGP140181MFR PART #: NAS1149D1816KOur Price: $11.18 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D2090J Aluminum Washer, Flat
National Aerospace Standard NAS1149D2090J Aluminum Washer, Flat
PART #: SGP140184MFR PART #: NAS1149D2090JOur Price: $2.83 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D2116J Aluminum Washer, Flat
National Aerospace Standard NAS1149D2116J Aluminum Washer, Flat
PART #: SGP140185MFR PART #: NAS1149D2116JOur Price: $2.15 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D2116K Aluminum Washer, Flat
National Aerospace Standard NAS1149D2116K Aluminum Washer, Flat
PART #: SGP140186MFR PART #: NAS1149D2116KOur Price: $8.38 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D2132J Aluminum Washer, Flat
National Aerospace Standard NAS1149D2132J Aluminum Washer, Flat
PART #: SGP140187MFR PART #: NAS1149D2132JOur Price: $11.33 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149DN216J Aluminum Washer, Flat
National Aerospace Standard NAS1149DN216J Aluminum Washer, Flat
PART #: SGP140192MFR PART #: NAS1149DN216JOur Price: $0.26 (Each)QTY: Add to Cart -
National Aerospace Standard NAS1149D2616J Aluminum Washer, Flat
National Aerospace Standard NAS1149D2616J Aluminum Washer, Flat
PART #: SGP140191MFR PART #: NAS1149D2616JOur Price: $9.39 (Each)QTY: Add to Cart
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.