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National Guard Products 161UA Polyurethane Perimeter Weatherstrip Set – Anodized Aluminum
National Guard Products (NGP) model 161UA is a polyurethane perimeter weatherstrip head-and-jamb set in an anodized aluminum finish with a black polyurethane insert. Each set includes one head piece and two jamb pieces, sized to fit the full perimeter of a commercial door opening. The 161UA is surface-applied to the frame stop and uses slotted screw holes for field adjustment, making it a practical choice for new construction and retrofit projects alike. With dual UL certifications covering both standard and positive-pressure fire door requirements, this perimeter seal is engineered for demanding commercial and institutional applications on hollow metal and wood fire-rated doors. Sets are made to order and are available in five standard opening sizes.
High-Performance Perimeter Weatherstrip Features
- Fire-Rated Performance: UL-certified to ANSI/UL10B and CAN/ULC-S104 for hollow metal fire doors up to 3 hours and wood fire doors up to 90 minutes, in compliance with NFPA 80 and NFPA 252.
- Positive Pressure Certified: Additionally certified by UL to ANSI/UL10C for positive-pressure applications on hollow metal doors up to 3 hours and wood doors up to 90 minutes, meeting IBC, NFPA 80, and NFPA 252 requirements.
- Recommended Air Infiltration Control: Designated by NGP as a recommended product for minimum air leakage, delivering a tight perimeter seal around commercial door openings.
- Aluminum Alloy 6063-T5 Extrusion: The carrier is extruded from Aluminum Alloy 6063 in T5 temper at .07" thickness, meeting military specification requirements for durability and dimensional consistency.
- Black Polyurethane Seal: The sealing element is a black polyurethane bulb offering very good abrasion resistance, tensile strength, memory retention, and UV resistance for long service life on high-traffic openings.
- Flame- and Moisture-Resistant: The polyurethane seal material is both flame-resistant and moisture-resistant, suited for exterior and interior fire-rated applications.
- Wide Temperature Range: Rated from -76°F to 275°F, maintaining seal integrity across extreme climate and temperature cycling conditions.
- Slotted Screw Holes for Adjustment: Slotted mounting holes allow field fine-tuning of the seal position against the door face without removal.
- Stainless Steel Fasteners Included: #6 x 3/4" stainless steel sheet metal screws are furnished with each set, resisting corrosion in exterior and high-humidity environments.
- Complete Head-and-Jamb Set: Sold as a coordinated set (1 head + 2 jambs) cut to the specified opening size, simplifying ordering and installation for the full door perimeter.
- Five Standard Opening Sizes: Available to fit 3'0 x 7'0, 4'0 x 7'0, 6'0 x 7'0, 6'0 x 8'0, and 8'0 x 8'0 openings, covering single, double, and oversized commercial door configurations.
Technical Details
| Manufacturer | National Guard Products (NGP) |
| Model Number | 161UA |
| Product Type | Perimeter Weatherstrip Head-and-Jamb Set |
| Finish | Anodized Aluminum |
| Seal Material | Black Polyurethane |
| Carrier Material | Aluminum Alloy 6063, T5 Temper, .07" thickness |
| Typical Section Profile | 7/8" x 5/16" |
| Set Contents | 1 head piece + 2 jamb pieces (screw applied to frame stop) |
| Available Opening Sizes | 3'0 x 7'0, 4'0 x 7'0, 6'0 x 7'0, 6'0 x 8'0, 8'0 x 8'0 |
| Fasteners Furnished | #6 x 3/4" Stainless Steel Sheet Metal Screws |
| Screw Holes | Slotted for field adjustment |
| Temperature Range | -76°F to 275°F |
| Abrasion Resistance | Very Good |
| UV Resistance | Very Good |
| Flame-Resistant | Yes |
| Moisture-Resistant | Yes |
| UL Certification – Standard | ANSI/UL10B and CAN/ULC-S104; NFPA 80 and NFPA 252 compliant |
| UL Certification – Positive Pressure | ANSI/UL10C; IBC, NFPA 80, and NFPA 252 compliant |
| Fire Door Rating – Hollow Metal | Up to 3 Hours |
| Fire Door Rating – Wood | Up to 90 Minutes |
| Military Spec Aluminum | Yes (.07" aluminum) |
| Availability | Made to Order |
| Lead Time | 10–15 Business Days |
Pro-Tip for Perimeter Sealing
The NGP 161UA is surface-applied directly to the frame stop on both the head and jamb members. The slotted screw holes allow the installer to shift the strip in or out against the door face before final tightening, ensuring consistent contact across the full height of the opening. The furnished #6 x 3/4" stainless steel sheet metal screws are sized for typical hollow metal and wood frame stop thicknesses — use the provided fasteners to maintain the assembly's UL certification for fire and positive-pressure applications. When ordering, confirm your rough opening size against one of the five available set sizes so the head and jamb lengths arrive pre-cut and ready to install without field splicing.
| Gasketing Set Size | 3'0 x 7'0 Set or 4'0 x 7'0 Set or 6'0 x 7'0 Set or 6'0 x 8'0 Set or 8'0 x 8'0 Set |
| Brand | National Guard Products |
| Housing Finish | Aluminum |
| Weatherstripping Type | Perimeter Gasketing |
| Housing Size | 7/8" x 5/16" (.07" aluminum) |
| Insert Color | Black |
| Fasteners | #6 x 3/4" Stainless Steel Sheet Metal Screws Furnished |
| Fire Rated | Fire Rated |
| Insert Material | Polyurethane |
| Mounting Type | Screw Applied - Exp Screw, Surface Mounted |
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