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NSN 5330-99-138-4302 Military Hydraulic Fluid Filter Cover Cap Adapter Plate Steel Ring

5330-99-138-4302 Nsn Military 99138430 Hydraulic Fluid Filter Cover Cap Adapter Plate Steel Ring

( Brand: Nsn ), ( Part Type: Hydraulic Fluid Cover Ring Filter Cap Adapter Plate ), ( EAN: 5330991384302 )

Review NSN Military 99138430 Hydraulic Fluid Filter Cover Cap Adapter Plate Steel Ring

The **NSN 5330-99-138-4302 Hydraulic Fluid Filter Cover Cap Adapter Plate and Steel Ring** is a precision-engineered component designed to ensure a secure, leak-proof seal between hydraulic system components, particularly in heavy-duty military and industrial applications. Crafted from high-grade **steel**, this robust adapter plate serves as a critical interface between the filter cover cap and the hydraulic reservoir or filter housing, providing structural integrity and preventing fluid contamination or pressure loss. The **steel ring** integrated into the design acts as a reinforced gasket seat, ensuring a tight, consistent seal under high-pressure conditions, which is essential for maintaining system efficiency and reliability in demanding operational environments. Whether installed on aircraft hydraulic systems, ground-based military vehicles, or specialized industrial machinery, this component is engineered to withstand extreme temperatures, vibrations, and mechanical stress, minimizing wear and extending the operational lifespan of the hydraulic system. Its standardized **NSN (National Stock Number)** classification ensures compatibility with a wide range of military specifications, making it a trusted choice for maintenance and replacement in logistics, logistics support, and field repair scenarios. The adapter plate s design also facilitates easy installation and removal, allowing for quick servicing and filter replacements without compromising system integrity. Built to exacting military standards, this component exemplifies durability, precision, and performance key attributes for mission-critical hydraulic applications where reliability cannot be compromised.

### **Analysis of Buying NSN 5330-99-138-4302 (Hydraulic Fluid Filter Cover Cap Adapter Plate, Steel Ring)**

#### **Pros:**

1. **Direct Compatibility** This part is a **National Stock Number (NSN)-listed item**, meaning it is officially recognized for use in military and government applications. It is designed to fit specific hydraulic systems where the original adapter plate or cover cap is missing or incompatible, ensuring proper sealing and functionality.

2. **Durability** Made from **steel**, it is built to withstand high-pressure hydraulic environments, extreme temperatures, and mechanical stress, reducing the risk of failure in critical applications.

3. **Standardized Fit** Since it is an NSN item, it adheres to **military specifications**, ensuring it will interface correctly with other approved components in the system, reducing the need for custom modifications.

4. **Prevents Leaks** A properly installed adapter plate helps maintain **hydraulic system integrity** by preventing fluid leaks, which can cause equipment damage or operational failures.

5. **Cost-Effective for Long-Term Use** While the initial purchase may seem expensive, replacing a damaged or missing adapter plate avoids costly downtime and potential system overhauls.

6. **Ease of Installation** Designed for standard hydraulic systems, it should fit without extensive modifications, making repairs or replacements more straightforward than custom solutions.

7. **Availability Through Military Channels** Since it is an NSN item, it can be sourced through **government supply chains, authorized distributors, or surplus markets**, ensuring reliability in procurement.

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#### **Cons:**

1. **High Upfront Cost** As an **NSN part**, it may be more expensive than generic or aftermarket alternatives, especially if purchased through official military supply routes.

2. **Limited Civilian Availability** Unlike common automotive or industrial parts, this item may not be readily available in standard hardware stores or online marketplaces, requiring specialized suppliers.

3. **Potential Overkill for Non-Military Use** If purchasing for a **non-governmental hydraulic system**, the steel construction and military-grade specifications may be **more robust than necessary**, leading to unnecessary expense.

4. **Compatibility Risks with Modified Systems** If the original hydraulic system has been altered (e.g., custom fittings, non-standard connections), this adapter may **not fit perfectly**, requiring additional machining or adjustments.

5. **Lead Times in Procurement** Due to its military designation, ordering through official channels (e.g., FedMall, government contracts) may involve **longer delivery times** compared to commercial suppliers.

6. **Potential for Counterfeit Parts** When purchasing from third-party sellers (especially online), there is a risk of receiving **fake or substandard replicas**, which could fail under pressure.

7. **Maintenance & Replacement Considerations** If the system frequently requires adapter replacements, the **long-term cost of multiple steel rings** may outweigh the benefits of durability.

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### **Conclusion:** Buying **NSN 5330-99-138-4302** is **highly recommended** for:

- **Military, government, or defense contractors** maintaining hydraulic systems where NSN compliance is mandatory.

- **Critical applications** where leak prevention and long-term reliability are non-negotiable.

- **Systems where original adapter failure has caused downtime**, and a standardized replacement is needed.

However, it may **not be the best choice** if:

- The system is **non-military** and a cheaper, non-NSN alternative exists.

- The user is **unable to verify authenticity** when purchasing from unofficial sources.

- The **budget is constrained**, and the part is only needed for a one-time repair.

For **military or high-stakes industrial use**, the benefits of **standardization, durability, and leak prevention** far outweigh the drawbacks. For **commercial or non-critical applications**, evaluating whether a **less expensive, non-NSN adapter** would suffice is advisable.

### **Final Recommendation:**

- **If you are working on a military, defense, or government hydraulic system**, purchase this **NSN part from an authorized supplier** (e.g., through **FedMall, military surplus stores, or approved distributors**) to ensure authenticity and compliance.

- **If this is for a civilian or non-military system**, research **compatible aftermarket or industrial-grade alternatives** that meet your specific requirements before committing to the higher-cost NSN option.

- **Always verify compatibility** with your system s specifications before installation to avoid unnecessary modifications.

Details:

Precise Physical Dimensions Specifications: Outer Diameter OD: 132mm. Base Flange Thickness: 6.78mm. Item comes ONLY with what is pictured, NO other materials available. Featuring a dual concentric stepped-ring sealing interface, precision internal fine threading, and integrated mounting paths.

Engineered for high-pressure hydraulic filtration systems and fluid management assemblies. Need it fast. The factory packaging bag shows heavy shelf wear, wrinkles, and storage dust, but the internal steel adapter itself remains fully intact ready for service. Military NSN 99138430 Hydraulic Fluid Filter Cover Cap Adapter Plate Steel Ring.

The steel component is in pristine, unmounted mechanical condition with zero structural thread deformation or mating surface scoring. Bag Tag Label: DY N 7342492 11 AP. Part Number Details: DLA Government Code: Cover, Fluid Filter.

part #: 5330991384302 price

  • $49.99

specifications hydraulivalv:

  • brand: Nsn
  • part type: Hydraulic Fluid Cover Ring Filter Cap Adapter Plate
  • ean: 5330991384302

seller hydraulivalv:

  • # reviews: 17370
  • rating: 99.4%
  • city: Athens, Georgia

general hydraulivalv:

  • condition: New Open box
  • Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Filters Cartridges > Other Hydraulic Filter Accessories

payments hydraulivalv:

  • other
  • credit card: Diners-club
  • wallet: Paypal

shipping hydraulivalv:

  • cost: $0.00
  • service: Economy, USPS Priority Mail, UPS Next Day Air Saver, UPS 2nd Day Air
  • carrier: USPS, UPS
  • transit: 4-10 Days
  • class: Economy, Expedited, One-day
  • type: Fixed

offer hydraulivalv:

  • started: May 29, 2026
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1

returns hydraulivalv:

  • time: 30 Days
  • method: Money back
  • paid by: Seller
  • policy: Returns Accepted
part type: hydraulic fluid cover ring filter cap adapter plate, ean: 5330991384302,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic filters cartridges > hydraulic filter accessories, sku: 14921369981259751,
Nsn 5330-99-138-4302 Is Similar To:
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1 offer $49.99 USD
  • New – Open box. Offer #1 priced at $49.99 + $0.00 shipping estimate = $49.99* total. All Years Industrial Surplus Hydraulic Filtration Assembly N/A Match via 132mm OD / 98mm Bolt Center Specs. Featuring a dual concentric stepped-ring sealing interface, precision internal fine threading, and integrated mounting paths.FREE SHIPPING

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