AN844 Rev 13
TABLE I. Material and finish codes - Continued.
Material and
Protective chemical
Material
finish code
finish 3/ 4/
Type 7075-T73 aluminum alloy
forging in accordance with
Anodize in accordance with
SAE-AMS-QQ-A-367 or
SAE-AMS2472 or MIL-A-8625, type II,
W
SAE-AMS4141, or type 7075-T73
class 2, dye brown similar to color 10080 in
aluminum alloy bar in accordance
accordance with FED-STD-595, duplex seal
2/
with SAE-AMS-QQ-A-225/9, in
in accordance with procurement
accordance with type 7075-T7351
specification.
Aluminum alloy bar in accordance
with SAE-AMS4124.
Type 7075-T73 aluminum alloy
forging in accordance with
SAE-AMS-QQ-A-367 or
High purity aluminum in accordance with
SAE-AMS4141, or type 7075-T73
WV
MIL-DTL-83488, class 3, type II with
aluminum alloy bar in accordance
maximum coating thickness of .0005 inch.
2/
with SAE-AMS-QQ-A-225/9, in
Glass bead peen pressure shall be 25 psi
accordance with type 7075-T7351
(1.72 bar) maximum.
Aluminum alloy bar in accordance
with SAE-AMS4124.
Anodize in accordance with SAE-AMS2488,
T 3/
Titanium
type 2.
1/
Material code was dash on previous revisions, changed to agree with SAE-ARP1590.
2/
Aluminum code D is inactivated, use code W.
3/
Titanium and cadmium shall not be used in oxygen systems.
4/
Cadmium shall not be used in potable water systems.
Oxygen systems for aerospace, shipboard, and ground support equipment. Parts for use on 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 tube and port size, material finish code letter(s) and blank of "A" for oxygen cleaning
requirements. Unassigned PIN's shall not be used.
AN844
-4
WV
Specification
number
Size code
see figure 1
Material and
Blank or "A" for
finish code
oxygen systems
see table I
5
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