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TURN BUTTER FASTENER - P/N 402

TURN BUTTER FASTENER (P/N 402) - New Surplus

P/N: 402

Category: Studs, Inserts & Fastener Hardware

$5.00
$25.00 order minimum applies
In Stock (7 available)
Buy Now Submit RFQ Call for Pricing

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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$5.00 7 Available

Product Description

The 402 is a quarter-turn turnlock fastener designed to secure removable aircraft panels for rapid access during inspection and maintenance. This fastener engages with a mating receptacle using a 90-degree rotational motion, providing vibration-resistant locking suitable for high-vibration environments. Commonly used on inspection panels, access doors, and equipment covers throughout general aviation aircraft.

The turnlock mechanism conforms to MIL-F-25173 specifications for aircraft equipment fastening. Installation requires verification of stud length and grip range against your aircraft's Illustrated Parts Catalog, with final installation following the applicable maintenance manual procedures.

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 TURN BUTTER FASTENER (P/N 402)?

The 402 is a quarter-turn turnlock fastener designed to secure removable aircraft panels for rapid access during inspection and maintenance. This fastener engages with a mating receptacle using a 90-degree rotational motion, providing vibration-resistant locking suitable for high-vibration environments.

Does the 402 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The TURN BUTTER FASTENER 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 402 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 402.

Can I order the 402 in custom quantities?

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

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