MS3186G
Qualification. Qualification shall be in accordance with MIL-DTL-26482, except only the following tests shall be required:
Examination of product.
Safety wire hole pull out (see requirements). Salt spray (corrosion).
Group A inspection shall consist of examination of product and safety wire pull out. Sampling for group A
inspection shall be as specified in table III.
TABLE III. Group A sampling plan.
Lot size |
Sampling |
1 to 13 |
100 percent |
14 to 150 |
13 units |
151 to 280 |
20 units |
281 to 500 |
29 units |
501 to 1,200 |
34 units |
1,201 to 3,200 |
42 units |
3,201 and up |
54 units |
Threads shall be in accordance with FED-STD-H28. Remove all burrs and sharp edges.
Safety wires on mounting nuts with crimped edges shall be capable of withstanding a 30-pound pull in any direction when using the .020 inches (0.51 mm) minimum diameter wire specified in NASM33540. Two pulls shall be made, one parallel with axis of the nut and one perpendicular to axis of the nut.
Slots shall be 120° apart, orientation optional with respect to hexagon configuration. Slot dimensions shall provide sufficient clearance for mounting on applicable jam-nut connector.
Part or Identifying Number (PIN) (example): MS3186 A 113 B - C (see note)
Finish
Dash number
Material
Military standard
NOTE: No designator is used when hex nuts with drilled safety wire holes are required. When a crimped hex nut is required, a "- C" designator shall be added to the end of the PIN to indicate crimp design.
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