BOLT, MACH, 1/4-28 X 21/32 D/H (P/N an4h-5a) - New Surplus
P/N: an4h-5a
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 | 21 Available |
Product Description
The AN4H-5A is a 1/4-28 hex head machine bolt with a drilled head for safety wire installations. This steel fastener conforms to AN/NASM4 standards and features a 21/32-inch grip length with an undrilled shank. Designed for airframe bracket assemblies where safety wiring through the bolt head prevents loosening during vibration.
Install with a compatible nut, ensuring grip length matches stack thickness, and torque per aircraft maintenance manual specifications. Common in general aviation and MRO maintenance applications.
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 BOLT, MACH, 1/4-28 X 21/32 D/H (P/N an4h-5a)?
The AN4H-5A is a 1/4-28 hex head machine bolt with a drilled head for safety wire installations. This steel fastener conforms to AN/NASM4 standards and features a 21/32-inch grip length with an undrilled shank.
Does the an4h-5a meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The BOLT, MACH, 1/4-28 X 21/32 D/H 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 an4h-5a 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 an4h-5a.
Can I order the an4h-5a in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT, MACH, 1/4-28 X 21/32 D/H is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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