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Lock Washer Helical: Hi Collar

MS51848-25 cres316 to MS51848-43 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: Hi Collar10 rowsPage 2 of 4
seriesrecord idfinishid min in (in)materialms part numbernominal bolt designationnominal bolt size in (in)od max in (in)standardthickness in (in)
Hi CollarMS51848-25 cres316Passivate0.255CRES 316MS51848-251/40.250.489MIL-STD-1764 Section 5060.078
Hi CollarMS51848-31 carbon steelCadmium plate0.318Carbon SteelMS51848-315/160.31250.586MIL-STD-1764 Section 5060.094
Hi CollarMS51848-31 cres302Passivate0.318CRES 302MS51848-315/160.31250.586MIL-STD-1764 Section 5060.094
Hi CollarMS51848-31 cres316Passivate0.318CRES 316MS51848-315/160.31250.586MIL-STD-1764 Section 5060.094
Hi CollarMS51848-37 carbon steelCadmium plate0.382Carbon SteelMS51848-373/80.3750.683MIL-STD-1764 Section 5060.109
Hi CollarMS51848-37 cres302Passivate0.382CRES 302MS51848-373/80.3750.683MIL-STD-1764 Section 5060.109
Hi CollarMS51848-37 cres316Passivate0.382CRES 316MS51848-373/80.3750.683MIL-STD-1764 Section 5060.109
Hi CollarMS51848-43 carbon steelCadmium plate0.446Carbon SteelMS51848-437/160.43750.779MIL-STD-1764 Section 5060.125
Hi CollarMS51848-43 cres302Passivate0.446CRES 302MS51848-437/160.43750.779MIL-STD-1764 Section 5060.125
Hi CollarMS51848-43 cres316Passivate0.446CRES 316MS51848-437/160.43750.779MIL-STD-1764 Section 5060.125

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Related data

Regular63 rowsExtra Duty59 rows