STUD.25-20-28X2.75#401850 (P/N 402129P003) - New Surplus

Name: STUD.25-20-28X2.75#401850
Brand: Aircraft Parts Store
SKU: 402129P003

P/N: 402129P003

Category: Fasteners & Hardware

Contact for quote

In Stock (1 available)

Submit RFQ Call for Pricing

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 402129P003 is a step stud for Continental aircraft engines, featuring dual 1/4-20 and 1/4-28 threads with a 2.75-inch length. This steel fastener attaches engine components and accessory hardware to the powerplant structure. Installation requires proper thread engagement and specified torque values per the Continental maintenance manual.

Verify compatibility with your engine's Illustrated Parts Catalog before installation to ensure correct fit and airworthiness compliance.

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 STUD.25-20-28X2.75#401850 (P/N 402129P003)?

The 402129P003 is a step stud for Continental aircraft engines, featuring dual 1/4-20 and 1/4-28 threads with a 2. 75-inch length.

Does the 402129P003 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The STUD.25-20-28X2.75#401850 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 402129P003 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 402129P003.

Can I order the 402129P003 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The STUD.25-20-28X2.75#401850 is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.