Aerospace Washers

Aerospace washers produced at TorqBolt are engineered for precision load distribution, joint stability, and long-term reliability in critical flight environments. Manufactured from high-performance alloys including A286, Inconel, Titanium, and corrosion-resistant steels, our washers comply with major aerospace standards and are fully traceable throughout production. Each washer is processed with controlled tolerances to ensure accurate bearing surfaces, improved fastener seating, and enhanced resistance to vibration, thermal cycling, and high-stress structural loads. Surface treatments including Silver Plating, Passivation, MoS₂ lubrication, and Anodizing are available to meet specific aerospace application requirements.

Aerospace Fasteners Bolting Materials

Titanium Grades 2 and Grade 5
Super Alloy a286, Waspalloy, Mp35n, Alloy 20
Inconel X750 / Inconel 718 / Nimonic 80a / Incoloy 925

Aerospace Washer Related Products

Aerospace Boltings Aerospace Bolts Aerospace Screws Aerospace Nuts Aerospace Pins Aerospace Nails Aerospace Rivets Aerospace Bushes Aerospace Clamps Aerospace Inserts Aerospace Rings Aerospace Sleeves Aerospace Threads

Aerospace Washer Products

Aerospace Washer BSI Series

BS-2SP-148-150 - Specification for Unified aluminium alloy washers
BS-2SP-151-153 - Specification for Washers, plain, Unified inch sizes, alloy steel, cadmium plated for Aerospace Use
BS-2SP-154-156 - Specification for Unified corrosion-resistant steel washers
BS-2SP-47 - Single coil spring washers for aircraft
BS-A-325 - Lockwire. Diameters
BS-EN-2138 - Washers, flat, in steel, cadmium plated
BS-EN-2327 - Aerospace series. Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods. Dimensions
BS-EN-2328 - Aerospace series. Washers, tab in corrosion resisting steel, cadmium plated for flight control rods. Dimensions
BS-EN-2414 - Aerospace series. Washers, chamfered, with counterbore, in alloy steel, cadmium plated
BS-EN-2546 - Aerospace series. Washers, lock with radial serrations in corrosion resisting steel passivated for flight control rods. Dimensions
BS-EN-2648 - Aerospace series. Washers, concave, in alloy steel, cadmium plated
BS-EN-3016 - Aerospace series. Washers countersunk, load spreading. Heat resisting steel
BS-EN-3017 - Aerospace series. Washers, facing/packing. Heat resisting steel
BS-EN-3267 - Aerospace series. Washers, bulkhead in titanium alloy
BS-EN-3299 - Aerospace series. Shaft-nuts and threaded rings, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601 (A286), silver plated. Technical specification
BS-EN-3382 - Aerospace series. Rings retaining, internal, axial mounting, steel, phosphated
BS-EN-3383 - Aerospace series. Rings retaining, internal, axial mounting,steel, vacuum cadmium plated
BS-EN-3384 - Aerospace series. Rings retaining, external, axial mounting,steel, phosphated
BS-EN-3385 - Aerospace series. Rings retaining, external, axial mounting, steel, vacuum cadmium plated
BS-EN-3386 - Aerospace series. Rings retaining, radial mounting, steel, phosphated
BS-EN-3696 - Aerospace series. Washers in heat resisting steel
BS-EN-3902 - Aerospace series. Washers for rivet assemblies, in aluminium alloy, anodized, metric series
BS-EN-3903 - Aerospace series. Washers, laminated, in corrosion resisting steel
BS-EN-3904 - Aerospace series. Washers, wire locking in aluminium alloy, anodized
BS-EN-4174 - Aerospace series. Collars, swage locking, sheartype, in aluminium alloy 2024, anodized or chromated, metric series
BS-EN-4175 - Aerospace series. Collars, flanged swage locking, sheartype, in titanium TI-P99002, metric series
BS-EN-4399 - Aerospace series. Rings, threaded, self-locking, in heat resisting steel FE-PA92HT (A286), silver plated
BS-EN-4401 - Aerospace series. Lockbolts, protruding head, sheartype, close tolerance, in titanium alloy TI-P64001, with aluminium pigmented coating, metric series. Classification: 1100 MPa (at ambient temperature) / 315C
BS-EN-4425 - Aerospace series. Washers, tab in corrosion resisting steel for flight control rods. Dimensions
BS-EN-4494 - Aerospace series. Rings, split, in stainless steel
BS-EN-4585 - Aerospace series. Clips, spring tension. Technical specification
BS-EN-6090 - Aerospace series. Washer, retaining
BS-EN-6094 - Aerospace series. Washer, spring, countersunk
BS-SP-107-112 - Specifications for tab washers for unified hexagons for aircraft
BS-SP-11 - Specification for Washers for Aircraft Purposes, (Primarily for Facing Purposes)
BS-SP-122-TO-125 - Washers for unified hexagons for aircraft (primarily for packing purposes)
BS-SP-122-TO-125-TC - Tracked Changes. Washers for unified hexagons for aircraft (primarily for packing purposes)
BS-SP-127 - Washers for Unified Hexagons for Aircraft (Primarily for Facing Purposes)
BS-SP-13,14,15 & 16 - Specification for washers for aircraft purposes. (primarily for packing purposes)
BS-SP-134-TO-SP-138 - Specification for Copper beryllium crinkle washers
BS-SP-139-&-SP-140 - Specification for Corrosion-resisting steel crinkle washers
BS-SP-18-&-19 - Specification for washers for aircraft purposes (primarily for use with timber)
BS-SP-22-27 - Specification for B.A. Washers. For aircraft purposes (primarily for instrument use)
BS-SP-41-46 - Specifications for tab washers for B.A. and B.S.W. hexagons for aircraft
BS-SP-55-&-SP-56 - Specification for washers, spring, double coil (inch sizes), steel, cadmium plated and phosphor bronze. For aircraft

Aerospace Washer ISO Series

ISO-245 - Aerospace - Lockwire - Diameters
ISO-9217 - Aerospace - Washers, chamfered, with counterbore, for pulleys, in alloy steel and cadmium plated or in corrosion-resistant steel and passivated - Dimensions and masses
ISO-9218 - Aerospace - Washers, flat, for pulleys, in alloy steel and cadmium plated or in corrosion-resistant steel and passivated - Dimensions and masses

Aerospace Washer Other SDOs Series

EN-2414 - Aerospace series - Washers, chamfered, with counterbore, in alloy steel, cadmium plated
EN-2648 - Aerospace series - Washers, concave, in alloy steel, cadmium plated
EN-2913 - Aerospace series - Washers, flat, large diameter, in steel, cadmium plated
EN-3016 - Aerospace Series - Washers Countersunk, Load Spreading - Heat Resisting Steel
EN-3017 - Aerospace Series - Washers, Facing/Packing - Heat Resisting Steel
EN-3299 - Aerospace Series, Shaft-Nuts & Threaded Rings, Self-Locking, Right- or Left-Hand Mj Th
EN-3382 - Aerospace series - Rings retaining, internal, axial mounting, steel, phosphated
EN-3383 - Aerospace series - Rings retaining, internal, axial mounting, steel, vacuum cadmium plated
EN-3384 - Aerospace series - Rings retaining, external, axial mounting, steel, phosphated
EN-3385 - Aerospace series - Rings retaining, external, axial mounting, steel, vacuum cadmium plated
EN-3386 - Aerospace series - Rings retaining, radial mounting, steel, phosphated
EN-3696 - Aerospace Series, Washers in Heat Resisting Steel
EN-3902 - Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series
EN-3903 - Aerospace series - Washers, laminated, in corrosion resisting steel
EN-4174 - Aerospace Series, Collars, Swage Locking, Sheartype, in Aluminium Alloy 2024, Anodized
EN-4399 - Aerospace Series, Rings, Threaded, Self-Locking, in Heat Resisting Steel FE-Pa92Ht (a2
EN-4401 - Aerospace Series, Lockbolts, Protruding Head, Shear Type, Close Tolerance, in Titanium
EN-4425 - Aerospace Series - Washers, Tab in Corrosion Resisting Steel for Flight Control Rods -
EN-6090 - Aerospace series - Washer, retaining
EN-6094 - Aerospace series - Washer, spring, countersunk
SS-EN-2327 - Aerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions
SS-EN-2328 - Aerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions
SS-EN-2414 - Aerospace series - Washers, chamfered, with counterbore, in alloy steel, cadmium plated
SS-EN-2546 - Aerospace series - Washers, lock with radial serrations in corrosion resisting steel passivated for flight control rods - Dimensions
SS-EN-2648 - Aerospace series - Washers, concave, in alloy steel, cadmium plated
SS-EN-3016 - Aerospace series - Washers countersunk, load spreading - Heat resisting steel
SS-EN-3017 - Aerospace series - Washers, facing/packing - Heat resisting steel
SS-EN-3267 - Aerospace series - Washers, bulkhead in titanium alloy
SS-EN-3299 - Aerospace series - Shaft-nuts and threaded rings, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601 (A286), silver plated - Technical specification
SS-EN-3382 - Aerospace series - Rings retaining, internal, axial mounting, steel, phosphated
SS-EN-3383 - Aerospace series - Rings retaining, internal, axial mounting, steel, vacuum cadmium plated
SS-EN-3384 - Aerospace series - Rings retaining, external, axial mounting, steel, phosphated
SS-EN-3385 - Aerospace series - Rings retaining, external, axial mounting, steel, vacuum cadmium plated
SS-EN-3386 - Aerospace series - Rings retaining, radial mounting, steel, phosphated
SS-EN-3696 - Aerospace series - Washers in heat resisting steel
SS-EN-3902 - Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series
SS-EN-3903 - Aerospace series - Washers, laminated, in corrosion resisting steel
SS-EN-3904 - Aerospace series - Washers, wire locking in aluminium alloy, anodized
SS-EN-4174 - Aerospace series - Collars, swage locking, sheartype, in aluminium alloy 2024, anodized or chromated, metric series
SS-EN-4175 - Aerospace series - Collars, flanged, swage locking, sheartype, in titanium - TI-P99002, metric series
SS-EN-4399 - Aerospace series - Rings, threaded, self-locking, in heat resisting steel FE-PA92HT (A286), silver plated
SS-EN-4401 - Aerospace series - Lockbolts, protruding head, sheartype, close tolerance, in titanium alloy TI-P64001, with aluminium pigmented coating, metric series - Classification: 1 100 MPa (at ambient temperature) / 315 degrees Celsius
SS-EN-4425 - Aerospace series - Washers, tab in corrosion resisting steel for flight control rods - Dimensions
SS-EN-4494 - Aerospace series - Rings, split, in stainless steel
SS-EN-4585 - Aerospace series - Clips, spring tension - Technical specification
SS-EN-6090 - Aerospace series - Washer, retaining
SS-EN-6094 - Aerospace series - Washer, spring, countersunk
SS-ISO-245 - Aerospace - Lockwire - Diameters
SS-ISO-9218 - Aerospace - Washers, flat, for pulleys, in alloy steel and cadmium plated or in corrosion-resistant steel and passivated - Dimensions and masses