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NGP 8434 Bumper Seal Threshold 4" Wide x 7/8" High | Dark Bronze
The National Guard Products 8434 is a commercial-grade thermal-break bumper seal threshold, 4" wide by 7/8" high, extruded from 6063-T5 aluminum with a bumper-seal insert at the stop. Specify insert: Neoprene, Silicone, or Vinyl. A rigid thermoplastic thermal barrier separates the interior and exterior aluminum to block thermal transfer, condensation, and frost at exterior openings.
ADA-Compliant, Barrier-Free Design
At just 7/8" high, the NGP 8434 provides an ADA-compliant transition that meets the ADA Standard for Accessible Design and ICC/ANSI A117.1, while the bumper insert seals the gap at the door stop for air infiltration control.
BHMA Certified
Certified to ANSI/BHMA A156.21 and listed in the BHMA Certified Products Directory.
Technical Specifications
| Model | NGP 8434 |
| Type | Bumper Seal Threshold |
| Width | 4" |
| Height | 7/8" |
| Material | Extruded Aluminum Alloy 6063, T5 Temper |
| Finish | Dark Bronze |
| Insert options | Neoprene, Silicone, Vinyl (N / S / V) |
| Wall Thickness | 0.100" |
| Weight | 0.82 lbs./ft. |
| Fasteners | #10 x 1-1/2" FH Zinc Plated Wood Screws (included) |
| Available Lengths | 36", 48", 72" |
| Certifications | ADA, ANSI/UL10B, UL10C (positive pressure), ANSI/BHMA A156.21 |
Ordering & Lead Time
Made to order (not stocked). Lead time: 5-7 business days.
| Length | 36 Inch or 48 Inch or 72 Inch |
| Insert Material | Vinyl or Neoprene or Silicone |
| Brand | National Guard Products |
| Threshold Grade | Commercial- Standard |
| Threshold Type | Bumper Seal |
| Threshold Width | 4" |
| Threshold Height | 7/8" |
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