Engineering Database
Sign inGet started
Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Home/Reference Data/Lock Washer Helical/Extra Duty/Page 4

Lock Washer Helical: Extra Duty

MS35340-37 cres420 to MS35340-50 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 4 of 6
seriesrecord idfinishid min in (in)materialms part numbernominal bolt designationnominal bolt size in (in)od max in (in)standardthickness in (in)
Extra DutyMS35340-37 cres420Passivate0.382CRES 420MS35340-373/80.3750.74MIL-STD-1764 Section 5060.109
Extra DutyMS35340-43 carbon steelCadmium plate0.446Carbon SteelMS35340-437/160.43750.842MIL-STD-1764 Section 5060.125
Extra DutyMS35340-43 cres302Passivate0.446CRES 302MS35340-437/160.43750.842MIL-STD-1764 Section 5060.125
Extra DutyMS35340-43 cres316Passivate0.446CRES 316MS35340-437/160.43750.842MIL-STD-1764 Section 5060.125
Extra DutyMS35340-43 cres420Passivate0.446CRES 420MS35340-437/160.43750.842MIL-STD-1764 Section 5060.125
Extra DutyMS35340-4 carbon steelCadmium plate0.118Carbon SteelMS35340-4#40.1120.236MIL-STD-1764 Section 5060.031
Extra DutyMS35340-4 cres302Passivate0.118CRES 302MS35340-4#40.1120.236MIL-STD-1764 Section 5060.031
Extra DutyMS35340-50 carbon steelCadmium plate0.509Carbon SteelMS35340-501/20.50.869MIL-STD-1764 Section 5060.094
Extra DutyMS35340-50 cres302Passivate0.509CRES 302MS35340-501/20.50.869MIL-STD-1764 Section 5060.094
Extra DutyMS35340-50 cres316Passivate0.509CRES 316MS35340-501/20.50.869MIL-STD-1764 Section 5060.094

What else is in Engineering Database

Iron Engine ↗Engineering AI at ironengine.ai

AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.

Get started for free ↗Reference Data375 engineering tables

Material properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.

Browse dataCalculatorsDeterministic engineering calculators

Sizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.

Browse calculators

Related data

Regular63 rowsHi Collar35 rows