Excellent flow control — smooth uniform bead without dripping or inconsistency for adhesives, sealants & potting compounds

Extended reach — tight spaces and complex assemblies in industrial, aerospace, and manufacturing applications

Secure attachment — reliable leak-free operation across all Semco® cartridge sizes, 1 oz through 1/10 gallon

Custom configurations — tailored dispensing geometry for specialized applications, MOQ & lead times apply

The 1/16" orifice diameter provides excellent flow control for smooth, uniform bead application without dripping or inconsistency — ideal for dispensing adhesives, sealants, potting compounds, and other specialized materials with varying viscosities. The fine 1/16" orifice delivers precise, controlled material output — producing a consistent fine bead profile that ensures accurate material placement for professional-grade results in every dispensing operation. At 4.0" in length, the Model #420 delivers this fine controlled flow at extended reach — accessing tight spaces and complex assemblies in industrial, aerospace, and manufacturing environments. For different flow requirements, the Model #420 is available in multiple orifice sizes.

At 4.0" in length, the Model #420 provides extended reach for tight spaces and complex assemblies — crucial in industrial, aerospace, and manufacturing applications. The 4.0" length is the extended configuration of the Model #420 series — delivering greater reach than the 2.0" standard configuration while maintaining precise operator control over the 1/16" fine bead placement. The 4.0" length combined with the 1/16" fine orifice and 1/4" NPT male thread creates a precision extended reach dispensing geometry — delivering fine controlled flow at depth in complex industrial equipment, tight assembly joints, and hard-to-reach areas. For different reach requirements, the Model #420 is available in multiple lengths and custom bent configurations.

The Model #420 is available in custom bent configurations — providing tailored dispensing geometry for specialized applications requiring specific approach angles, access geometries, or custom reach configurations beyond the standard straight design. Custom bent configurations allow for precise material placement in uniquely complex assemblies, specialized industrial equipment, and custom production environments where standard straight or angled nozzles cannot achieve the required dispensing geometry. Minimum order quantities, lead times, and pricing considerations apply — contact your Semco® distributor for custom bent configuration availability and ordering requirements.

The 1/4" NPT male thread provides secure attachment for reliable, leak-free operation across the entire Semco® cartridge range — from 1 oz through 1/10 gallon. The standardized 1/4" NPT connection ensures consistent, reliable fine controlled flow from cartridge through nozzle to application point at every dispensing operation. The 1/4" NPT thread is the industry-standard connection for Semco® dispensing systems — ensuring maximum compatibility, secure attachment, and optimal performance across all compatible cartridge sizes and dispensing gun configurations.

The Model #420 works seamlessly with both pneumatic and manual dispensing guns — providing flexibility for various production environments and workflow requirements. Use with pneumatic dispensing guns for automated dispensing with speed and efficiency for high-volume applications, or with manual dispensing guns for detailed work allowing hands-on control and precision in every application. Pair with a pneumatic hose assembly for extended reach capability — making it easier to access hard-to-reach areas during fine controlled dispensing at the 4.0" extended reach distance.

Manufactured through precision molding processes — each nozzle ensures consistent flow control and accurate material placement for professional-grade results. The precision molding process ensures consistent wall thickness, dimensional accuracy, and uniform orifice geometry across every unit — delivering repeatable, reliable 1/16" fine bead output at the 4.0" extended reach distance in every dispensing operation. The disposable design ensures single-use application integrity — eliminating cross-contamination between materials and maintaining consistent dispensing performance across every application.

1/4" NPT male thread — secure attachment to any Semco® cartridge, 1 oz through 1/10 gallon, reliable leak-free operation

4.0" extended length — access tight spaces and complex assemblies in industrial, aerospace, and manufacturing applications

1/16" fine orifice — smooth uniform bead for adhesives, sealants, potting compounds without dripping or inconsistency

Disposable design — remove and replace for next application, preventing cross-contamination between materials

Excellent flow control — smooth uniform bead without dripping or inconsistency for adhesives, sealants, and potting compounds

Greater reach than 2.0" configuration — tight spaces, complex assemblies, and hard-to-reach industrial areas

Tailored dispensing geometry for specialized applications — custom approach angles and access configurations, MOQ applies

Versatile operation — pneumatic for high-volume speed, manual for hands-on control across various production environments