WASHER, FLAT (P/N DIN9021B4,3NRST) - New Surplus
P/N: DIN9021B4,3NRST
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 1 Available |
Product Description
The DIN9021B4,3NRST is a large-diameter flat washer conforming to DIN 9021 and ISO 7093-1 specifications. Manufactured in stainless steel, this washer features an outer diameter approximately three times the fastener diameter, designed to spread clamping loads across wider surface areas. It installs under bolt heads or nuts to protect aircraft structures and adjust grip length during assembly.
Commonly used in general aviation fastening applications where load distribution and surface protection are required. Installation follows FAA AC 43.13-1B guidance for proper torque and positioning.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the WASHER, FLAT (P/N DIN9021B4,3NRST)?
The DIN9021B4,3NRST is a large-diameter flat washer conforming to DIN 9021 and ISO 7093-1 specifications. Manufactured in stainless steel, this washer features an outer diameter approximately three times the fastener diameter, designed to spread clamping loads across wider surface areas.
Does the DIN9021B4,3NRST meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The WASHER, FLAT 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 DIN9021B4,3NRST 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 DIN9021B4,3NRST.
Can I order the DIN9021B4,3NRST in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER, FLAT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.