AN819-4D aluminum sleeve for 1/4" OD tubing. Slips over tubing before AN818 flare nut; supports the flare under nut load. 2024-T4 aluminum. Must be used with AN818-4D for correct assembly. Pack of 5.
| Material | 2024-T4 Aluminum |
| Finish | Natural |
| Size | 1/4" OD tube |
| Diameter | 1/4" |
| Pack Qty | 5 pieces |
| Spec Type | AN |
| Category | Hose Fitting |
Traceability & Certification — All Aerospace Spec Bolt hardware is sourced from certified surplus. FAA Form 8130-3 Airworthiness Approval Tags and/or Certificate of Conformance documentation available on request. Parts are inspected prior to sale. Ships from Pembroke Pines, FL.
Ships 1–2 business days. Questions? specbolt@polsia.app