MIL-DTL-52525/7D
PIN: The PIN consists of the letter "M" the specification sheet number, a dash, a number for hose
size, a dash, a number for tube size, and a material finish designator.
M
52525/7
-4
-5
A
Material/finish designator (see table I)
Size dash number for tube (see figure 1)
Size dash number for hose (see figure 1)
Specification sheet number
M prefix
PIN example: M52525/7-4-5A, describes a 90° connector for a .250 inch (6.35 mm) hose OD, .313
inch (7.95 mm) tube OD, aluminum with an anodized finish.
To the users of this document, it is recommended that the use of carbon steel material with cadmium
plating be used only when the other materials and finishes specified in this document cannot meet
performance requirements.
Color identification. Color identification shall be in accordance with SAE-AS4841.
Marking shall include the manufacturer's name or trademark, size, and hose identifier R1. Location of
marking is optional.
Harmonization to SAE-J516 cross reference PIN in table IV is for reference only. SAE style fittings may
not have the same material/finish as required by MIL-DTL-52525 and legacy with
MIL-DTL-52471.
TABLE IV. Harmonization to SAE-J516 cross reference PIN. 1/
PIN
SAE PIN
M52525/7-4-4
SAE J516 4-4 241453
M52525/7-4-5
SAE J516 5-4 241453
M52525/7-6-6
SAE J516 6-6 241453
M52525/7-6-8
SAE J516 6-8 241453
M52525/7-8-8
SAE J516 8-8 241453
M52525/7-8-10
SAE J516 10-8 241453
M52525/7-12-12
SAE J516 12-12 241453
M52525/7-16-16
SAE J516 16-16 241453
1/ Material and finish designators are omitted from
PIN's, see table I and SAE-J846.
Notes:
1. For design feature purposes, this standard takes precedence over the procurement document
referenced herein. Referenced documents shall be of the issue in effect on the date of
invitation for bid.
2. In the event of a conflict between the text of this standard and the referenced cited herein, the
text of this standard shall take precedence.
6
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