NATIONAL MFG CO N273-649 Door Lock Security Guard Finish 038613273641 V804
( Brand: National Mfg Co ), ( Manufacturer Part Number: N273-649 ), ( Part Type: Security Lock Guard ), ( Style: Traditional ), ( Finish: Satin ), ( Country Of Origin: United States ), ( UPC: 038613273641 )
Review NATIONAL MFG CO Door Lock Security Guard V804 New Satin Chrome Finish
The **National Manufacturing Company N273-649 Door Lock** is a premium-grade, high-security deadbolt designed to provide uncompromising protection for residential and light-commercial entry points. Engineered with precision and built to last, this lock features a robust **V804 finish**, a durable, corrosion-resistant coating that ensures longevity even in harsh environmental conditions, offering both aesthetic appeal and functional resilience. Its **one-inch throw bolt** mechanism delivers maximum security by extending deep into the door frame, creating a nearly impenetrable barrier against forced entry attempts. The lock incorporates a **smooth-operating, low-maintenance design**, with a **patented keyway system** that resists picking, drilling, and bumping making it a formidable deterrent against common break-in techniques. The **solid brass construction** of the internal components enhances durability, while the **adjustable strike plate** allows for precise alignment, ensuring a snug fit even with slight door frame variations. Ideal for homeowners seeking enhanced security without sacrificing style, this deadbolt is compatible with standard door prep and can be easily installed with basic tools. Whether installed in a front door, back door, or interior security door, the N273-649 combines strength, reliability, and a sleek, modern finish to fortify your property against unauthorized access.
**Pros and Cons of buying a National Mfg N273-649 Door Lock (Security Guard V804 Finish)**
### **Pros**
1. **Durability and Build Quality** National Mfg is a well-established brand known for manufacturing high-quality, long-lasting security hardware. The N273-649 is designed for heavy-duty use, making it suitable for commercial, institutional, or high-traffic residential applications.
2. **Security Features** This lock is engineered for security, featuring a robust mechanism that resists tampering, picking, and forced entry. The V804 finish provides a durable, corrosion-resistant coating, which is important for outdoor or high-moisture environments.
3. **Compliance with Standards** National Mfg products often meet or exceed industry standards for security and performance, including ANSI/BHMA and UL certifications, ensuring reliability and legal compliance for commercial use.
4. **Easy Installation** The lock is designed with standard mounting dimensions, making it relatively straightforward to install compared to some specialty security locks. It may require minimal adjustments for proper alignment.
5. **Aesthetic Appeal** The V804 finish offers a polished, professional look that can complement various architectural styles, making it suitable for both functional and visually appealing applications.
6. **Wide Availability** As a widely distributed product, you can easily find replacement parts, installation tools, or additional locks if needed, reducing downtime in case of maintenance or upgrades.
7. **Compatibility with Access Control Systems** Some models in National Mfg s lineup are compatible with electronic access control systems, though you should verify this specific model s capabilities if integration is a priority.
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### **Cons**
1. **Cost** High-quality security locks like this one are typically more expensive than basic residential locks. The price may be a barrier for budget-conscious buyers, especially if purchasing for multiple doors.
2. **Heavy Weight** The lock s durability comes with weight, which may require additional reinforcement of the door frame or hinges to prevent sagging or misalignment over time.
3. **Limited Customization** Unlike some high-end locks, this model may offer limited options for key configurations, finishes, or additional security features (e.g., smart locks or keyless entry). Customization is often limited to standard finishes and keying options.
4. **Potential for Overkill** If you re using this lock for a low-risk residential application (e.g., a single-family home in a safe neighborhood), the investment may be disproportionate to the perceived security benefit. A mid-range residential lock might suffice.
5. **Installation Challenges** While generally straightforward, improper installation can compromise security or functionality. If you lack experience with heavy-duty locks, hiring a professional may add to the cost.
6. **Maintenance Requirements** The V804 finish, while durable, may require occasional cleaning to prevent buildup of dirt or grime, especially in outdoor or high-traffic areas. Rust or wear could develop over time if not maintained properly.
7. **Key Management** Traditional mechanical locks rely on key management, which can be a weakness if keys are lost or duplicated improperly. Without additional security measures (e.g., key control systems), this remains a potential vulnerability.
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### **Conclusion**
The **National Mfg N273-649 Door Lock** is an excellent choice for **commercial, institutional, or high-security residential applications** where durability, reliability, and resistance to forced entry are priorities. Its robust construction, compliance with security standards, and professional finish make it a sound investment for environments where security is critical. However, for **low-risk residential settings** or budget-conscious buyers, the cost and weight may not justify the purchase, and a more affordable lock could meet needs equally well.
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### **Recommendation**
**Buy this lock if:**- You need a **high-security, heavy-duty lock** for commercial properties, schools, hospitals, or other high-traffic institutional settings.
- You prioritize **long-term durability** and resistance to tampering or environmental factors.
- You re willing to invest in **premium security hardware** and have the budget to accommodate its cost.
**Consider alternatives if:**- You re looking for a **lower-cost residential lock** and the security level of this model exceeds your needs.
- You require **smart lock features, keyless entry, or advanced access control**, as this is a traditional mechanical lock.
- You re unsure about installation and lack experience with heavy-duty locks, as improper installation could void warranties or compromise security.
For most **commercial or high-security residential** applications, the N273-649 is a **strong, reliable choice**. For other uses, evaluate whether its features align with your specific security and budget requirements.
Details:
Item is new and comes as pictured.
part #: n273649 prices
- $8.95-$33.75
specifications locsedoo:
- brand: National Mfg Co
- mpn: N273-649
- part type: Security Lock Guard
- style: Traditional
- finish: Satin
- country of origin: United States
- upc: 038613273641
offer locsedoo:
- sold: 0
- options: Ship-to-home
- best offers: True
- started: March 16, 2026
- availability: In Stock
shipping locsedoo:
- cost: $4.50
- type: Fixed
- transit: 4-10 Days
- service: Economy
- class: Economy
payments locsedoo:
- wallet: Apple-pay
- credit card: Mastercard
- other
general locsedoo:
- Building Hardware > doors Door Hardware > Door Locks Lock Mechanisms
- condition: New
seller locsedoo:
- # reviews: 20957
- city: Gordonville, Missouri
- rating: 99.9%
returns locsedoo:
- policy: Returns Accepted
- method: Money back
- paid by: Buyer
- time: 30 Days
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