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National Guard Products 161NA Neoprene Bulb Perimeter Weatherstrip Head-and-Jamb Set – Anodized Aluminum
National Guard Products (NGP) model 161NA is a neoprene bulb perimeter weatherstrip head-and-jamb set in an anodized aluminum finish with a black neoprene bulb insert. Each set includes one head piece and two jamb pieces, factory cut and furnished with stainless steel screws for screw-applied installation directly to the door frame stop. The 161NA is available in five standard opening sizes — 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 — and is made to order with a typical lead time of 10–15 business days. Engineered for demanding commercial and institutional applications, this perimeter seal delivers a tight, energy-efficient closure on hollow metal and wood fire-rated door assemblies, and carries UL fire-door and smoke-control certifications along with BHMA/ANSI compliance for long-term performance.
High-Performance Neoprene Bulb Weatherstrip Features
- UL Fire-Door Certified (Standard and Positive Pressure): Certified by UL to CAN/ULC-S104 and ANSI/UL10B, and to positive-pressure standard ANSI/UL10C; complies with NFPA 80 and NFPA 252 for hollow metal fire doors rated up to 3 hours and wood fire doors rated up to 90 minutes.
- Smoke and Draft Control Gasketing: Certified by UL to ANSI/UL10C and ANSI/UL1784 Category H; complies with IBC and NFPA 105 for use on S-labeled positive-pressure hollow metal fire doors rated up to 3 hours and wood fire doors rated up to 90 minutes.
- ANSI/BHMA A156.22 Certified: Listed in the BHMA Certified Products Directory and certified to American National Standard for Door Gasketing and Edge Sealing Systems, including performance tests for heat and cold.
- Extreme Temperature Range: The synthetic EPDM rubber in polypropylene thermoplastic matrix performs from -81°F to 275°F, maintaining compression and memory across climates from cold-storage facilities to high-heat industrial environments.
- Durable Aluminum Extrusion: Carrier profile is extruded from Aluminum Alloy 6063, T5 temper — a corrosion-resistant, architectural-grade alloy that holds its shape and finish in high-traffic door openings.
- Very Good Abrasion Resistance and Tensile Strength: The neoprene bulb resists wear from repeated door contact, maintaining an effective seal over the life of the installation.
- Flame-Resistant and Moisture-Resistant Insert: The neoprene compound is both flame-resistant and moisture-resistant, suitable for rated fire assemblies and wet or humid environments.
- Ozone, Sunlight, and Aging Resistant: The EPDM-based compound resists degradation from ozone, UV exposure, and long-term aging, reducing replacement frequency in exterior or sun-exposed applications.
- Head-and-Jamb Set — Ready to Install: Supplied as a matched set (one head piece, two jamb pieces) cut for the specified opening size, with all hardware furnished — no field sourcing of screws required.
- Slotted Screw Holes for Field Adjustment: Pre-slotted mounting holes allow on-site positioning adjustments so installers can fine-tune seal contact without drilling additional holes.
- Stainless Steel Fasteners Included: #6 x 3/4-inch stainless steel sheet metal screws are furnished with each set, providing corrosion-resistant attachment appropriate for both interior and exterior applications.
- Made to Order in Five Opening Sizes: Available for 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, allowing accurate specification for single, double, and oversized commercial door assemblies.
Technical Details
| Manufacturer | National Guard Products (NGP) |
| Model Number | 161NA |
| Product Type | Neoprene Bulb Perimeter Weatherstrip Head-and-Jamb Set |
| Finish | Anodized Aluminum |
| Insert / Seal Material | Black Neoprene (Synthetic EPDM Rubber in Polypropylene Thermoplastic Matrix) |
| Carrier Material | Aluminum Alloy 6063, T5 Temper |
| Typical Section Profile | 7/8" x 5/16" (0.07" aluminum wall thickness) |
| Set Contents | 1 Head Piece + 2 Jamb Pieces (complete perimeter head-and-jamb set) |
| Application Method | Screw applied to the door frame stop |
| Fasteners Furnished | #6 x 3/4" Stainless Steel Sheet Metal Screws (included) |
| Screw Holes | Slotted for field adjustment |
| 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 |
| Temperature Range | -81°F to 275°F |
| Flame Resistance | Flame-Resistant |
| Moisture Resistance | Moisture-Resistant |
| Environmental Resistance | Good resistance to ozone, sunlight, and aging |
| Abrasion Resistance | Very Good |
| Tensile Strength | Very Good |
| Memory (Compression Set) | Very Good |
| UL Fire-Door Certification | Certified by UL to CAN/ULC-S104 and ANSI/UL10B; complies with NFPA 80 and NFPA 252 — Hollow Metal up to 3 hrs., Wood up to 90 min. |
| UL Positive-Pressure Certification | Certified by UL to ANSI/UL10C; complies with IBC, NFPA 80 and NFPA 252 — Hollow Metal up to 3 hrs., Wood up to 90 min. |
| Smoke and Draft Control Certification | Certified by UL to ANSI/UL10C and ANSI/UL1784 Category H; complies with IBC and NFPA 105 — S-labeled Positive Pressure Hollow Metal up to 3 hrs., Wood up to 90 min. |
| BHMA Certification | ANSI/BHMA A156.22 Certified — Listed in BHMA Certified Products Directory |
| Availability | Made to Order |
| Lead Time | 10–15 Business Days |
Pro-Tip for Perimeter Sealing
The NGP 161NA is designed for surface application directly to the door frame stop. When installing, take advantage of the slotted screw holes to shift the seal carrier inward or outward so the neoprene bulb makes consistent contact with the door face along the full height of both jambs and across the head. The furnished #6 x 3/4" stainless steel sheet metal screws drive cleanly into hollow metal or wood frames — drive them snug but not fully tight until you confirm bulb contact is uniform, then torque to final position. Ordering the correct opening size ensures the head and jamb pieces arrive pre-cut, minimizing field modification and keeping the sealed perimeter tight from corner to corner.
| 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 |
| Smoke Rated | Smoke Rated |
| 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 | Neoprene |
| Mounting Type | Screw Applied - Exp Screw, Surface Mounted |
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