WASHER, CSK TYPE FINISHING (P/N nas391-b8p) - New Surplus
P/N: nas391-b8p
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 | 116 Available |
Product Description
The NAS391-B8P is a countersunk finishing washer manufactured to NAS391 specifications with copper-alloy construction. This washer provides a bearing surface beneath flat or oval head screws, distributing clamping force evenly across panel and trim assemblies. The countersunk design allows screws to seat flush with the surface, maintaining aerodynamic contour and clean appearance in aircraft installations.
Pair with the specified screw size and install per standard aircraft maintenance practices for secure, professional fastening.
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, CSK TYPE FINISHING (P/N nas391-b8p)?
The NAS391-B8P is a countersunk finishing washer manufactured to NAS391 specifications with copper-alloy construction. This washer provides a bearing surface beneath flat or oval head screws, distributing clamping force evenly across panel and trim assemblies.
Does the nas391-b8p meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The WASHER, CSK TYPE FINISHING 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 nas391-b8p 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 nas391-b8p.
Can I order the nas391-b8p in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER, CSK TYPE FINISHING is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.