COLLAR (P/N HL87-5) - New Surplus

The HL87-5 is a 303 stainless steel collar designed for Hi-Lok fastening systems in aircraft structural applications. This break-off collar pairs with a 1/64-oversize Hi-Lok pin to create a tension joint with uniform preload. During installation, the collar is torqued onto the pin until the hex breaks off at the defined torque value, indicating proper clamping force.

Used throughout airframe structures where controlled preload and reliable joint integrity are critical. Always follow aircraft maintenance manual specifications for torque values and installation procedures.

What is the COLLAR (P/N HL87-5)?

The HL87-5 is a 303 stainless steel collar designed for Hi-Lok fastening systems in aircraft structural applications. This break-off collar pairs with a 1/64-oversize Hi-Lok pin to create a tension joint with uniform preload.

Does the HL87-5 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The COLLAR 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 HL87-5 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 HL87-5.

Can I order the HL87-5 in custom quantities?

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