WASHER (P/N a1638-13) - New Surplus
P/N: a1638-13
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 | 13 Available |
Product Description
The a1638-13 is a metal flat washer designed to distribute fastener load beneath bolt heads and nuts in aircraft structural and systems applications. This washer protects bearing surfaces and maintains joint preload integrity per AN/NAS hardware standards. Installed under the bolt head or nut during panel and bracket attachments across the airframe, it prevents fastener pull-through and surface damage.
Selection requires matching the washer thickness and inner diameter to the drawing specification, with installation torque per the applicable maintenance manual.
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 (P/N a1638-13)?
The a1638-13 is a metal flat washer designed to distribute fastener load beneath bolt heads and nuts in aircraft structural and systems applications. This washer protects bearing surfaces and maintains joint preload integrity per AN/NAS hardware standards.
Does the a1638-13 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The WASHER 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 a1638-13 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 a1638-13.
Can I order the a1638-13 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.