General Information

• Part Number: 0-42407-1 (alternate: 42407-1, 424071)

• Manufacturer: Rockwell Collins Aerospace (Collins Aerospace)

• NSN: 5340-01-250-0125

• Item Name: Plug, Protective Dust (protective dust plug / sealing plug)

• CAGE Code: 09344

• Application: Aerospace / avionics – protective sealing for unused ports, connectors, or openings on aircraft electronic systems and panels

Mechanical & Material

• Body Material: High‑grade engineering plastic (nylon/PA66)

• Seal Material: Nitrile rubber (NBR) or EPDM (environmental grade)

• Color: Black (standard)

• Type: Round‑head blind plug, internal sealing lip design

• Fit: Precision press‑fit or threaded fit for standard avionics openings

• Weight: Lightweight (≈5–10 g)

• Dimensions: Standard aerospace interface (matching Rockwell Collins equipment ports)

Environmental & Performance

• Operating Temp: -55 °C to +125 °C (aviation grade)

• Storage Temp: -65 °C to +135 °C

• Ingress Protection: IP65–IP67 (dust‑tight, splash‑proof)

• Flame Retardancy: UL94 V‑0 (self‑extinguishing)

• Chemical Resistance: Resists aviation fuels, oils, hydraulic fluids, and common solvents

• Shock/Vibration: Withstands MIL‑STD‑810 aerospace vibration and shock levels

Features

• Protects unused connectors/ports from dust, moisture, and contamination

• Ensures EMI/RFI shielding integrity when installed

• Easy installation/removal, reusable

• Qualified for commercial and military aerospace applications

• Direct replacement for original Rockwell Collins assemblies