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Simulation and modeling E-25 General Standards for Aerospace and Propulsion Systems Medical, health, and wellness Combustion and combustion processes Gases On-board energy sources

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Lubricant, Solid Film
2022-04-01
CURRENT
AS1701F
This document covers the performance requirements for solid dry film lubricants, air dried or heat cured, for use in aerospace applications. These lubricants are intended to prevent galling, and may be capable of remaining effective for extended periods of time after exposure to extreme environmental conditions.
Standard

Groove Design - Metal Face Seal
2019-06-06
CURRENT
AIR1108A
Groove designs presented herein are applicable for use with machined or formed metal seals which are similar in configuration to those shown in figure 3, which operate under internal pressure or in vacuum service and which have been specifically qualified or recommended by the purchaser or the manufacturer for use with this AIR. They are also applicable for use with metal o-rings (e.g., MS9142, MS202 thru MS9205) where interchangeability with machined or formed metal seals is desired. For metal o-ring groove designs where inter-changeability is not a requirement refer to ARP 674.
Standard

Screw Threads, Metric Buttress - MJB Profile
2019-01-03
CURRENT
MA1696B
This standard establishes the basic triangular profile for the MJB thread form, the design profiles, standard pitches, tolerance classes, formulae for tolerances and dimensions, tolerance tables, and a system of designations. Because of the specialized application for buttress threads, no preferred diameter-pitch series have been established for this standard and each application will require use of the thread formulae for dimensions and related tolerances given herein for deriving the thread dimensional requirements.
Standard

White Paper to Support Supersession of MIL-S-8879C With AS8879C
2018-08-23
HISTORICAL
AIR5926
This paper was prepared to support supersession of MIL-S-8879C with Screw Thread Conformity Task Force selected industry standard AS8879C, published by the Society of Automotive Engineers (SAE). Other documentation changes will be covered by separate papers. Separate papers are anticipated for thread gaging issues, and thread gage calibration procedures. The STC-TF decided that the thread design standard needed to be completed before thread gage definition could be addressed. Thread gage definition has to be known before calibration procedures can be addressed.
Standard

Lubricant, Solid Film
2014-12-28
HISTORICAL
AS1701E
This document covers the performance requirements for solid dry film lubricants, air dried, or heat cured for use in aerospace applications. These lubricants are intended to prevent galling, and may be capable of remaining effective for extended periods of time after exposure to extreme environmental conditions.
Standard

Surface Texture, Roughness, Waviness and Lay
2014-09-05
CURRENT
AS291F
This standard provides a method of applying surface roughness, waviness and lay control. The data included herein also covers the method of applying surface roughness symbols and related designations to drawings and specifications of parts when applicable. This standard is based on the Arithmetical Average (AA) method of instrumentation. Data compiled are based on current manufacturing practices. It also includes a summary of data published in the latest issue of the American Standards Association publication ASA B46.1.
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