BOLT,SHEAR (P/N 20-057-4-21) - New Surplus

The 20-057-4-21 is a steel shear bolt engineered to transfer transverse loads across aircraft structural joints. This fastener conforms to aerospace standards including NAS and MS specifications for reliability in high-stress applications. Commonly installed in flight control hinge fittings where lateral load transfer is critical.

Installation requires verification of correct grip length, proper torque application per aircraft maintenance documentation, and adherence to FAA AC 43.13-1B guidelines. The bolt's shear strength ensures secure joint integrity during flight operations and ground handling.

What is the BOLT,SHEAR (P/N 20-057-4-21)?

The 20-057-4-21 is a steel shear bolt engineered to transfer transverse loads across aircraft structural joints. This fastener conforms to aerospace standards including NAS and MS specifications for reliability in high-stress applications.

Does the 20-057-4-21 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT,SHEAR conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the 20-057-4-21 manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the 20-057-4-21.

Can I order the 20-057-4-21 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT,SHEAR is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.