MIL-STD-2193C(SH)
TABLE IV. Options for selection of hydraulic component fasteners. 1/
Application |
Fastener Type |
Specification |
Material |
Inboard applications not in contact with seawater. Inboard applications not in bilge regions or trunks. |
Bolts, hex head capscrews, and studs |
MIL-DTL-1222 |
Grade 5 or 8 |
SAE-J429 |
Grade 5 or 8 |
||
NASM7838 |
Alloy steel |
||
ASTM A193/A193M |
Grade B7 or B16 |
||
ASTM F593 |
Group 1 or 2 |
||
Socket head capscrews |
MIL-DTL-1222 |
Grades A574, 4340, or 630 |
|
NAS 1351/1352 |
Alloy steel, corrosion-resistant steel, or heat-resistant steel |
||
FF-S-86 |
Type VI, alloy steel 2/, corrosion- resistant steel, or heat- and corrosion-resistant steel |
||
ASTM A574 |
Alloy steel 2/ |
||
ASME 18.3 |
ASTM A564/A564M, Type 630, Condition H 1150 |
||
Nuts |
MIL-DTL-1222 |
Grade 4, 5, 7, or 8 |
|
ASTM A563 |
Grades C, D, or DH |
||
SAE-J995 |
Grade 5 or 8 |
||
ASTM A194/A194M |
Grade 4 or 7 |
||
Self locking nuts |
NASM17829 |
Alloy steel |
|
NASM17830 |
CRES |
||
Outboard applications. Inboard applications in contact with seawater. Inboard applications in bilge regions or trunks. |
Bolts, hex head capscrews, and studs |
MIL-DTL-1222 |
Grade 400, 500, or 625 |
ASTM F468 |
Alloy 400, 405, or 625 3/ |
||
Socket head capscrews |
MIL-DTL-1222 |
Grade 500 or 625 |
|
FF-S-86 |
Nickel copper alloy |
||
ANSI B18.3 |
ASTM B446 UNS N06625 Grade 1 |
||
Nuts |
MIL-DTL-1222 |
Grades 400, 405, or 625 |
|
ASTM F467 |
Alloy 400 or 405 |
||
ASTM F594 |
Group 1 or 2 |
||
ASME B18.2.2 |
ASTM B446 UNS N06625 Grade 1 |
||
Self-locking nuts |
NASM17828 |
Ni-Cu |
|
NASM17830 |
CRES |
||
MIL-DTL-32258 |
Ni-Cu |
||
NOTES: 1/ Proper material selection shall be followed when selecting alloys from this table, and selection shall be consistent with applicable detail shipbuilding specifications or other invoked contractual requirements. Some material combinations (MIL-DTL-1222 Grade 500 bolts with MIL-DTL-1222 Grade 625 nuts) are incompatible. 2/ FF-S-86, alloy steel, and ASTM A574 fasteners shall require a manufacturer mark as size permits. 3/ Nickel-copper alloy bolting ⅞-inch diameter or greater shall be in accordance with MIL-DTL-1222 for all applications, since the mechanical properties of ASTM F468 for those sizes are less than MIL-DTL-1222. |
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