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NUT,SELF-LOCKING,EXTENDED WASHER,H - P/N ms21043-5

NUT,SELF-LOCKING,EXTENDED WASHER,H (P/N ms21043-5) - New Surplus

P/N: ms21043-5

Category: Nuts

$6.00
$25.00 order minimum applies
In Stock (44 available)
Buy Now Submit RFQ Call for Pricing

Flat-rate shipping. Choose Ground or a faster service at checkout.

Flat-rate shipping covers most parts. If your order turns out to need freight or special handling, we'll contact you with the updated shipping cost before it ships. You can pay the difference or cancel for a full refund. International buyers pay any duties and import taxes.

Available Inventory

Condition Price Stock
New Surplus$6.00 44 Available

Product Description

The MS21043-5 is a self-locking hex nut with an extended washer and all-metal prevailing-torque design. This corrosion and heat-resistant steel fastener features a 5/16-24 UNJF-3B internal thread conforming to Military Standard MS21043. The extended washer base distributes load across a wider surface area, reducing bearing stress on composite or thin-gauge materials.

The integral locking mechanism resists vibration loosening without thread-locking compounds. Used in airframe and nacelle applications where reliable fastening under flight loads is critical. Install on clean, dry threads and torque per MS/NAS specifications or aircraft maintenance manual requirements.

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 NUT,SELF-LOCKING,EXTENDED WASHER,H (P/N ms21043-5)?

The MS21043-5 is a self-locking hex nut with an extended washer and all-metal prevailing-torque design. This corrosion and heat-resistant steel fastener features a 5/16-24 UNJF-3B internal thread conforming to Military Standard MS21043.

What conditions is the ms21043-5 available in?

The ms21043-5 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the ms21043-5?

The ms21043-5 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the ms21043-5?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.

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