| Diagram | Fig. 15 — NACELLE, HEADLAMP AND SWITCHES · ref 19 |
| Subsystem | electrical |
| Listed in parts books | 1960–1962, 1964–1965 |
Index plunger spring
An index plunger spring, small detent spring used with a plunger and housing assembly.
Part number 373 is an index plunger spring. Despite being filed under the electrical figure for nacelle, headlamp, and switches in Ed's records, this is a mechanical spring, not an electrical component - the manufacturer tag on this one is off. It's a small spring that works with a plunger and housing to provide detent action, holding a moving part in a set position until it's pushed past the spring's resistance.
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The catalog entries for this part run from 1960 to 1965 across a handful of appearances, but the figure listing it under headlamp/switch hardware doesn't tell us much about its actual working location. If you're chasing this part for a gearbox selector plunger setup, it's worth confirming against your own parts book before ordering, since the catalog data here doesn't pin down a specific assembly.
If you're not sure this is the spring you need, give the shop a call and we'll help track down the right plunger spring for your application.
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