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Lock Washer Helical: Extra Duty

MS35340-50 cres420 to MS35340-6 cres316

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

Mechanical Engineeringseries: Extra Duty10 rowsPage 5 of 6
seriesrecord idfinishid min in (in)materialms part numbernominal bolt designationnominal bolt size in (in)od max in (in)standardthickness in (in)
Extra DutyMS35340-50 cres420Passivate0.509CRES 420MS35340-501/20.50.869MIL-STD-1764 Section 5060.094
Extra DutyMS35340-56 carbon steelCadmium plate0.572Carbon SteelMS35340-569/160.56250.985MIL-STD-1764 Section 5060.141
Extra DutyMS35340-56 cres302Passivate0.572CRES 302MS35340-569/160.56250.985MIL-STD-1764 Section 5060.141
Extra DutyMS35340-56 cres316Passivate0.572CRES 316MS35340-569/160.56250.985MIL-STD-1764 Section 5060.141
Extra DutyMS35340-62 carbon steelCadmium plate0.636Carbon SteelMS35340-625/80.6251.083MIL-STD-1764 Section 5060.156
Extra DutyMS35340-62 cres302Passivate0.636CRES 302MS35340-625/80.6251.083MIL-STD-1764 Section 5060.156
Extra DutyMS35340-62 cres316Passivate0.636CRES 316MS35340-625/80.6251.083MIL-STD-1764 Section 5060.156
Extra DutyMS35340-6 carbon steelCadmium plate0.141Carbon SteelMS35340-6#60.1380.279MIL-STD-1764 Section 5060.04
Extra DutyMS35340-6 cres302Passivate0.141CRES 302MS35340-6#60.1380.279MIL-STD-1764 Section 5060.04
Extra DutyMS35340-6 cres316Passivate0.141CRES 316MS35340-6#60.1380.279MIL-STD-1764 Section 5060.04

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