Lock Washer Helical: Hi_Collar
Helical spring lock washer dimensions per MIL-STD-1764 Section 506 — ID (min), OD (max), and section thickness for Regular (MS35338), Extra Duty (MS35340), and Hi-Collar (MS51848) series across bolt sizes #2 through 1-1/2 inch, in carbon steel (cadmium plate) and corrosion-resistant steel (CRES 302, 316, 420); supports bolt joint design, counterbore/clearance sizing, and military/aerospace fastener part selection
| series | record id | finish | id min in (in) | material | ms part number | nominal bolt designation | nominal bolt size in (in) | od max in (in) | thickness in (in) |
|---|---|---|---|---|---|---|---|---|---|
| Hi_Collar | MS51848-100_carbon_steel | Cadmium plate | 1.017 | Carbon Steel | MS51848-100 | 1 | 1 | 1.661 | 0.266 |
| Hi_Collar | MS51848-100_cres302 | Passivate | 1.017 | CRES 302 | MS51848-100 | 1 | 1 | 1.661 | 0.266 |
| Hi_Collar | MS51848-10_carbon_steel | Cadmium plate | 0.194 | Carbon Steel | MS51848-10 | #10 | 0.19 | 0.334 | 0.047 |
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