NAS1921M04S-05WU - Rivet

Part number NAS1921M04S-05WU is a 1/8-inch diameter flush head structural blind rivet with a mechanically locked stem, designed for aerospace applications requiring one-sided installation and high vibration resistance.

Specifications

• Series: NAS1921
• Type: Structural blind rivet / blind fastener
• Head Style: 100° flush countersunk head
• Diameter: 1/8 in. (0.125")
• Grip Range: Approx. 0.251 – 0.312 in.
• Dash Number: -05
• Sleeve Material: Monel (“M”)
• Stem Material: Alloy steel, mechanically locked
• Finish: Corrosion-resistant coated stem
• “S” Suffix: Oversize/shaved configuration for precision fit applications
• “WU” Suffix: Wet-installed / sealed configuration commonly used for fuel-tight or moisture-resistant installations

Features

• Flush aerodynamic head for aircraft exterior surfaces
• Mechanically retained stem provides high shear and tensile strength
• Blind installation allows fastening where backside access is unavailable
• Monel sleeve offers excellent corrosion resistance
• Wet-install/sealed design helps prevent moisture intrusion