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Fittings, Tube, Fluid Systems, Separable, High Pressure Beam Seal, 5000/8000 psi, General Specification For
- Aerospace Standard
- AS85720B
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This specification covers the design requirements and test procedures for separable beam seal fittings which include end fittings (see 2.4.2), connectors (see 2.4.3), and boss fittings for use in aerospace fluid systems. Design requirements are for Class 5000 and 8000 in titanium, and corrosion resistant steel (CRES). Definition of fittings and related terms are defined in 2.4.
Rationale
This specification is revised to incorporate allowances for shape fittings (Elbows, Tees and Crosses) to be manufactured from either: a) bar-stock per dimensions specified in AS1376 or b) near-net forgings or c) oversize forgings per dimensions specified in AS1376. It is also being revised to replace the lot-to-lot destructive testing with periodic testing.
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Topic
Data Sets - Support Documents
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| Table 1 | Fitting and tubing materials | |
| Table 2A | 5000 PSI CRES tubing sizes and bending stresses | |
| Table 2B | 5000 PSI titanium tubing sizes and bending stresses | |
| Table 2C | 8000 PSI CRES tubing sizes and bending stresses | |
| Table 2D | 8000 PSI titanium tubing sizes and bending stresses | |
| Table 3A | Torque requirements, class 5000 | |
| Table 3B | Torque requirements, class 8000 | |
| Table 4 | Fitting assemblies | |
| Table 5 | Qualification inspection requirements |
Issuing Committee
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
This Committee is responsible for developing and maintaining standards for design, test, and procurement of fluid systems part standards to improve reliability and economy. Their primary focus is on AS standards development and support of military standards. The Committee also develops ISO standards in a Subcommittee Advisory Group (SCAG) to ISO/TC 20/SC 10, and SAE-MA derivatives thereof.
Structure: SAE G-3 -- Parent committee SAE G-3A -- Aerospace Couplings Subcommittee SAE G-3B -- Aerospace Fittings Subcommittee SAE G-3D -- Aerospace Hose Subcommittee SAE G-3E - Aerospace Tubing Assemblies Subcommittee U.S. SCAG to ISO/TC 20/SC 10 -- ISO standards Major projects: Support of Military Standards Reform Support of military standard conversions to MIL-PERF and MIL-DTL. Development of AS replacements for military standards designated for conversion. Establish document to list G-3 accepted replacements for replaced part standards and military back-up specifications. Development of PRI QML/QPL Development of Performance Review Institute (PRI) process for approval and surveillance of manufacturers (Qualified Manufacturer List, QML) and for approval of standard parts as qualified for use (Qualified Parts List, QPL). Development of ISO Standards, Imperial Units ISO/TC 20/SC 10 standards have typically been developed in SI units. The ISO has approved development of inch-based ISO standards to support commercial aviation. Basic design, test, and procurement specifications will be selected from military standards that are to be converted to Non-Government standard (NGS) and developed as ISO standards.Reference
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