MIL-PRF-25676E
3. REQUIREMENTS
3.1 First Article. When specified in (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.2.
3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered,
or environmentally preferable materials should be used to the maximum extent possible
provided that the material meets or exceeds the operational and maintenance requirement, and
promotes economically advantageous life cycle.
3.3 Materials. All materials shall be suitably treated to resist corrosion due to
electrolytic decomposition, salt spray, and any other atmospheric conditions that may be
encountered during operational use or storage.
3.4 Design. The complete adapter assembly shall consist of an adapter incorporating a
self-sealing shutoff device and a protective cap in accordance with MS24476 and MS24480,
respectively. The adapter shall be designed to mount on a section of aircraft or engine
structure and to mate with a pressure servicing lubricating oil nozzle to provide quick
separation from the nozzle. The adapter when disconnected from the nozzle, shall
automatically seal itself to avoid spillage. In addition, the adapter shall be provided with a
protective, dust and moisture and salt spray seal cap. The cap must be able to remain securely
fastened and mounted to the adapter during vibration testing. The cap shall have a means of
attachment, such as a chain, for connection to the adapter or the aircraft.
3.5 Interface. The adapter end styles shall be manufactured in accordance with AS4396.
3.5.1 Method of connecting and disconnecting. Connecting and disconnecting of the
adapter to the nozzle shall be accomplished Manually throughout the operating temperature
range. While connected, a positive flow of fluid has been assured with no possibility of fluid
shutoff. A positive means of locking shall be provided when the adapter is connected to the
nozzle. The force required to engage the adapter shall not exceed 20 pounds.
3.6 Performance. The adapter shall operate without failure, with no leakage, when
subjected to the operating pressures encountered in turbine engine oil systems. The only
exception would be the entrapped fluid within the adapter at the time of disconnection
3.6.1 Temperature range. The adapter shall have the ability to function in a temperature
range from -65 F to +275 F.
3.6.2 Low temperature and leakage. The adapter shall not crack nor show other
imperfections when subjected to an ambient temperature of -65 F for 24 hours. Following this
cold exposure, connection and disconnection of the adapter and nozzle shall be accomplished
with relative ease and rapidity. There shall be no leakage during leakage tests in 4.5.5.
3
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business