AS33514 defines a specific type of used in continuous-flow oxygen systems. Unlike diluter-demand systems, continuous-flow systems provide a constant flow of oxygen to the mask (adjustable by the user). The valve reduces high-pressure cylinder storage (up to 400 psig) to a usable outlet pressure (50 psig) and includes integral gauges for monitoring.
: References this standard for fitting ends in aircraft engine lubrication systems. sae-as33514
Think of it as the between OEMs, distributors, and testing labs. AS33514 defines a specific type of used in
involving these specific parts. Part numbers established under the original military specification remain unchanged to maintain compatibility. comparison table : References this standard for fitting ends in
| Section | What It Contains | |---------|------------------| | | Manufacturer name, MPN (manufacturer part number), date code, lot code | | Supply chain traceability | Purchase order, supplier name, distributor chain | | Inspection findings | Visual anomalies, X-ray, decapsulation, electrical test failures | | Risk assessment | Failure mode, application criticality (flight safety vs. non-safety) | | Disposition | Scrapped, returned, reworked, or used after risk analysis |
| Standard | Relationship to AS33514 | |----------|--------------------------| | | Defines the flexible hose end fittings that mate with AS33514 tube fittings. | | SAE-AS33516 | Specifies the port connection (boss) for attaching the fitting to valves, pumps, or manifolds. | | SAE-AS4395 | The older flared fitting standard – not interchangeable with AS33514. | | SAE-AS4059 | Fluid cleanliness level required during assembly (to prevent ferrule damage). | | ISO 8434-3 | International equivalent (metric version) but not identical – do not mix. |