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Metallic Whiskers

2019-10-17
CURRENT
AIR4129A
This AIR presents an abbreviated review of the metallurgical phenomena known as whiskers. It is not all encompassing; rather, it is intended to introduce the design engineer to the technical issues of metallic whiskers, their formation, and the potentially dangerous problems they can cause.
Standard

Petroleum Base Instrument Bearing Lubricant, Viscosity 15

2019-03-25
WIP
AMS3055C
This specification covers the requirements for a refined paraffinic petroleum-base lubricant. This lubricant has been used typically in spin axis bearings of gyroscopes, accelerometers, and similar bearing applications, but usage is not limited to such applications.
Standard

Vacuum Gauge Calibration

2019-03-06
CURRENT
ARP7446
This SAE Aerospace Recommended Practice (ARP) addresses the general procedure for the best practices for minimizing uncertainty when calibrating thermal conductivity and cold cathode vacuum gauges, which includes the vacuum sensor(s) and accompanying electronics necessary for a pressure measurement to be made. It also includes the best practices for an in-process verification where limitations make it impossible to follow the best practices for minimizing uncertainty. Verifying the accuracy and operation of vacuum gauges is critical to ensure the maintenance of processes while under vacuum.
Standard

Plating, Brush, Cobalt

2017-11-20
CURRENT
AMS2451/11B
This specification covers the requirements for brush plating of cobalt by electrodeposition.
Standard

Plating, Brush, Silver

2017-11-09
CURRENT
AMS2451/13A
This specification covers the engineering requirements and process for brush plating of silver by electrodeposition. It shall be used, in conjunction with AMS2451, for silver deposits.
Standard

Identification Castings

2017-10-12
CURRENT
AMS2804D
This specification covers the requirements for identification of castings.
Standard

Molybdenum Disulfide, Technical, Lubrication Grade

2017-09-22
CURRENT
AMSM7866B
This specification covers the requirements for procurement of one grade of powdered molybendum disulfide to be used in lubricants and greases for surfaces where boundary conditions exist.
Standard

Treatment of Sheet Metal Parts Corrosion-Resistant Steel

2017-09-20
CURRENT
AMS2550F
This specification covers the engineering requirements for a treatment to provide enhanced corrosion resistance to sheet metal parts, such as brackets, spacers, and washers, fabricated from martensitic Corrosion-resistant steels, usually AMS 5504 or AMS 5508 and having hardness not higher than 40 HRC, or ferritic corrosion-resistant steels, usually AMS 5506. The treatment is not recommended for use on parts subject to impact in service.
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