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National Aerospace Standard NAS620C6 Crescent Steel Washer, Flat - 40/Pack
National Aerospace Standard NAS620C6 Crescent Steel Washer, Flat - 40/Pack
PART #: SGP142419-X40MFR PART #: NAS620C6Our Price: $19.20 (40/Pack)QTY: Add to Cart -
Aeronautical Standard AN960-5L Washer, Flat - 44/Pack
Aeronautical Standard AN960-5L Washer, Flat - 44/Pack
PART #: SGP91044-X44MFR PART #: AN960-5LOur Price: $58.96 (44/Pack)QTY: Add to Cart -
Military Standard MS20002C4 Steel Countersunk Washer, Flat - 100/Pack
Military Standard MS20002C4 Steel Countersunk Washer, Flat - 100/Pack
PART #: SGP133361-X100MFR PART #: MS20002C4Our Price: $38.00 (100/Pack)QTY: Add to Cart -
National Aerospace Standard NAS1149D0563K Aluminum Washer, Flat - 150/Pack
National Aerospace Standard NAS1149D0563K Aluminum Washer, Flat - 150/Pack
PART #: SGP140134-X150MFR PART #: NAS1149D0563KOur Price: $66.00 (150/Pack)QTY: Add to Cart -
Boeing BACW10BP3DP Crescent Steel Washer, Recessed - 10/Pack
Boeing BACW10BP3DP Crescent Steel Washer, Recessed - 10/Pack
PART #: SGP100986-X10MFR PART #: BACW10BP3DPOur Price: $2.70 (10/Pack)QTY: Add to Cart -
National Aerospace Standard NAS1149D0863H Aluminum Washer, Flat - 33/Pack
National Aerospace Standard NAS1149D0863H Aluminum Washer, Flat - 33/Pack
PART #: SGP140151-X33MFR PART #: NAS1149D0863HOur Price: $44.55 (33/Pack)QTY: Add to Cart -
Military Standard MS35333-35 Carbon Steel Washer, Lock - 125/Pack
Military Standard MS35333-35 Carbon Steel Washer, Lock - 125/Pack
PART #: SGP138048-X125MFR PART #: MS35333-35Our Price: $32.50 (125/Pack)QTY: Add to Cart -
Military Standard MS35338-47 Crescent Steel Washer, Lock - 400/Pack
Military Standard MS35338-47 Crescent Steel Washer, Lock - 400/Pack
PART #: SGP138108-X400MFR PART #: MS35338-47Our Price: $60.00 (400/Pack)QTY: Add to Cart -
Military Standard MS35333-37 Carbon Steel Washer, Lock - 100/Pack
Military Standard MS35333-37 Carbon Steel Washer, Lock - 100/Pack
PART #: SGP138050-X100MFR PART #: MS35333-37Our Price: $12.00 (100/Pack)QTY: Add to Cart -
National Aerospace Standard NAS620C4L Crescent Steel Washer, Flat - 100/Pack
National Aerospace Standard NAS620C4L Crescent Steel Washer, Flat - 100/Pack
PART #: SGP142417-X100MFR PART #: NAS620C4LOur Price: $37.00 (100/Pack)QTY: Add to Cart -
National Aerospace Standard NAS1149C0463B Stainless Steel Washer, Flat - 48/Pack
National Aerospace Standard NAS1149C0463B Stainless Steel Washer, Flat - 48/Pack
PART #: SGP140062-X48MFR PART #: NAS1149C0463BOur Price: $11.52 (48/Pack)QTY: Add to Cart -
National Aerospace Standard NAS1149C1490R Stainless Steel Washer, Flat - 25/Pack
National Aerospace Standard NAS1149C1490R Stainless Steel Washer, Flat - 25/Pack
PART #: SGP140091-X25MFR PART #: NAS1149C1490ROur Price: $53.00 (25/Pack)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.