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Fittings, 37 Degree Internal Flare, Fluid Connection, Procurement Specification
- Aerospace Standard
- AS4841D
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Aerospace Standard (AS) establishes the requirements for 37 degree flared tube fittings or machined internal cone fluid connection fittings for use with 37 degree external cone, spherical nose, and seal ring fittings in all types of aerospace fluid systems (see Section 6).
Rationale
Note 4.5.1.2 revised to remove the statement that destructive testing is required to retain QML status. This requirement is regulated by AC7112.
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Table 1 | Materials | |
| Table 2 | Depth of laps, seams, surface irregularities, and discontinuities in rolled threads | |
| Table 3 | Expansion test load values for standard AS5176 or equivalent low alloy steel sleeves | |
| Table 4A | Fitting material and operating pressures for use on 304 1/8 hard CRES tubing | |
| Table 4B | Operating pressures for Al alloy, Cu alloy or Ni alloy fittings for use on aluminum alloy tubing | |
| Table 5 | Quality conformance inspection for nondestructive inspection | |
| Table 6 | Quality conformance inspection for destructive tests | |
| Table 7 | Dimensions, sleeves test fixture | |
| Table 8 | Supersession table | |
| Table A1 | Classes of characteristics, impact, and IRR | |
| Table A2 | Fitting end design, 37 degree external flared cone | |
| Table A3 | Fitting end design, 37 degree external flared cone, bulkhead | |
| Table A4 | Nut, coupling tube, 37 degree internal flared fitting | |
| Table A5 | Straight fitting (adapter, reducer, union), 37 degree cone flared | |
| Table A6 | Cap assemblies, 37 degree, internal flared | |
| Table A7 | Shape fitting (tee, elbow, cross, etc.), 37 degree cone flared | |
| Table A8 | Nut, lock, flat bulkhead | |
| Table A9 | Sleeves tube, 37 degree internal flared fitting | |
| Table A10 | Sampling inspection, tables for isolated lot applications | |
| Table A10 | Sampling inspection, tables for isolated lot applications | |
| Table A10 | Sampling inspection, tables for isolated lot applications |
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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