Commercial & Private Aircraft
Serving a range of aviation customers’ needs, from commercial airliners to private jets, smaller airplanes and helicopters.
For more than 75 years, Caplugs has served as the leading supplier to the aerospace and defense industry in FOD protection, product protection, masking, hose protection and custom molded components—including parts meeting MIL/NAS and SAE AS85049/138 specifications. From OEM production to MRO support, our solutions are built to keep operations mission-ready.
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As a trusted manufacturer of protective plastic and rubber components for aerospace, defense and aviation applications, Caplugs produces everything from access panel closures and electronic connector protection to masking and FOD protection—meeting the demanding requirements of OEMs, tiered suppliers and MRO operations.
With extensive experience across both standard and custom solutions, Caplugs combines deep industry knowledge, manufacturing expertise and a broad range of capabilities to help protect components throughout shipment, storage, assembly, maintenance and repair.
Let us help you onshore your plastic components and product protection. With 3 U.S. manufacturing facilities, we can help.
Caplugs’ experience serving the aerospace and defense industry supports applications ranging from commercial and private aviation to military aircraft and space exploration.
Serving a range of aviation customers’ needs, from commercial airliners to private jets, smaller airplanes and helicopters.
Meeting stringent requirements for parts designed to fit common MIL/NAS specifications in military aircraft, from fighters and bombers to multi-role and patrol vehicles.
Protective parts that meet the exacting requirements of components for manned, un-manned, orbital and sub-orbital spacecraft.
Explore standard Caplugs solutions for common aerospace and defense protection, masking and finishing requirements.
Help keep hydraulic components, fittings, hoses and open ports secure during shipping, storage, assembly and repair.
Shop Hydraulics
Safeguard electrical components and connectors from impact, moisture and contaminants, with options for a wide range of aerospace connector applications.
Shop Electronics
Keep critical areas covered during finishing processes with masking caps, plugs, tapes and discs.
Shop Masking
Shield edges and openings in sheet metal and other components during production, assembly and use.
Shop Edge Liners
Finish and safeguard openings in aerospace components with standard grommets, bushings and related parts.
Shop Grommets & Bushings
Cover aircraft windows during stripping, painting, fleet maintenance and repair.
Shop Aircraft Window MasksThe following Caplugs parts are in accordance with the corresponding specifications. Click the series links for detailed product information.
| Spec Number | Part |
|---|---|
| NAS 831 | EC, SEC |
| NAS 832 | CD |
| NAS 833 | PD |
| NAS 834 | T |
| NAS 835 | ASC |
| NAS 836 | ASP |
| NAS 837 | EP, SEP |
| NAS 840 | P-38B Only |
| NAS 842 | ADP |
| NAS 843 | K |
| NAS 844 | SC |
| SAE AS85049/138 | AS138 |
Important Notice
Statements, technical information and recommendations about Caplugs products are based on information believed to be reliable, but accuracy and completeness are not guaranteed. Customers are responsible for determining whether a product is suitable for their application, and no statement is binding unless confirmed in writing by an authorized Caplugs officer.
Many aerospace and defense challenges can be solved with standard catalog parts. Explore hundreds of available sizes and geometries for protection, masking and finishing applications.
View Standard PartsWhen a standard part isn’t enough, our in-house engineering team can modify an existing design or develop a fully custom solution for your application.
Request Custom Quote
Explore Caplugs solutions for aerospace and defense applications, including protective products for OEM production, maintenance, repair, refurbishment and finishing processes.
View Aerospace & Defense CatalogCaplugs manufactures protective solutions for commercial and private aircraft, military and defense applications, and space exploration. Our parts are used to protect critical components during shipment, storage, assembly, maintenance, repair, refurbishment and finishing processes.
Yes. Many aerospace and defense applications can be addressed with standard catalog parts available in hundreds of sizes and geometries. When a standard part does not meet the application requirements, Caplugs can modify an existing design or develop a fully custom solution.
Yes. Caplugs manufactures parts designed to meet a range of common MIL/NAS specifications, as well as SAE AS85049/138. Refer to the Military & NAS Specifications section on this page for the applicable specifications and Caplugs series.
Caplugs manufactures solutions for hydraulic and electronic component protection, masking, edge protection, grommets and bushings, aircraft window masking and other aerospace applications. Products are designed to help protect components from impact, FOD, contamination and damage throughout production and maintenance processes.
Yes. Caplugs solutions support aerospace OEM production as well as ongoing MRO requirements, helping protect components during manufacturing, assembly, maintenance, repair and refurbishment.
Whether you need a standard protective part or a custom solution, Caplugs’ product experts can help identify the right solution for your application.
