AN915 Rev 13
Oxygen systems for aerospace, shipboard, and ground support equipment. Parts for use in oxygen
systems shall be identified in the PIN as code "A" and shall be furnished cleaned, packaged, and
labeled in accordance with SAE-AS611 to a process approved by the user.
Part or Identifying Number (PIN): The PIN consists of the prefix "AN", specification sheet number,
dash number for hose and flared tube size, material finish code letter(s) and blank of "A" for oxygen
cleaning requirements. Unassigned PIN's shall not be used.
AN915
-4
WV
Specification
number
Size code
(see figure 1)
Material and
Blank or "A" for
finish code
oxygen systems
(see table I)
PIN examples:
AN915-4W indicates an adapter 45° elbow 1/2-14 ANPT internal pipe threads, aluminum alloy
7075-T73.
AN841-4WV indicates an adapter 45° elbow 1/2-14 ANPT internal pipe threads, aluminum alloy
7075-T73 finish with high purity aluminum.
AN841-4WA indicates an adapter 45° elbow 1/2-14 ANPT internal pipe threads, aluminum alloy
7075-T73 for use on oxygen systems.
Guidance on use of alternative parts with less hazardous or non-hazardous materials. This
specification provides for a number of alternative plating materials via the PIN. Users should select
the PIN with the least hazardous material that meets the form, fit, and function requirements of their
application.
Supersession data:
Due to stress corrosion cracking aluminum alloys 2014 and 2024, "D" designator has been
replaced by aluminum alloy 7075 "W" designator. Example: AN915-8D use AN915-8W.
Metal cracking due to high temperatures CRES alloy 347 "S" designator has been replaced by
CRES alloy 321 "R" designator. Example: AN915-8S use AN915-8R.
Marking: Part shall be permanently marked with the AN PIN, and include the manufacturer's CAGE,
name, or trademark.
Table II provides a detailed cross-reference of AN915 PINs and replacement SAE-AS4855 PINs.
Users are cautioned to evaluate replacements for their particular application.
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