← Cotter pins
AN380-4-7
AN380 cotter pin
| Head / form | Cotter pin |
|---|---|
| Diameter / thread / size | nominal 1/8 (DIA ±.005) |
| Grip / length / thickness | length 1-3/4" (L ±1/16) |
| Material / finish | Low carbon steel, cadmium plate QQ-P-416 or zinc plate QQ-Z-325 |
| Reference confidence | high |
| Source | AN380 Rev 7 sheet 1 ↗ |
Head / form source: AN380 Rev 7 sheet 1
Source notes and limits
- "ADD "C" BEFORE FIRST DASH NUMBER FOR CORROSION-RESISTANT STEEL." "DASH NUMBERS LISTED ARE FOR LOW CARBON STEEL."
- MS24665F Table VIII: use MS24665-359 (carbon steel, cadmium plated per qq-p-416, type ii, class 3, 1/8 x 1-3/4, Table IV).
- Example: "EXAMPLE OF PART NUMBERS: AN380-2-2 = 1/16 PIN 1/2 INCH LONG, LOW CARBON STEEL. AN380C2-2 = 1/16 PIN 1/2 INCH LONG, CORROSION-RESISTANT STEEL."
- "CANCELED AFTER 1 AUGUST 1968." "INACTIVE FOR DESIGN AFTER 1 MARCH 1961 USE MS24665." (AN380 sheet 1).
- "AN380 AND MS24665 CARBON STEEL COTTER PINS OF THE SAME NOMINAL DIAMETER AND BASIC LENGTH ARE UNIVERSALLY, FUNCTIONALLY AND DIMENSIONALLY INTERCHANGEABLE."
- FAA AC 43.13-1B para 7-103 (p.7-17): "COTTER PINS (AN380). Cotter pins are used for securing bolts, screws, nuts, and pins. Use AN381 or MS24665 cotter pins in locations where nonmagnetic material or resistance to corrosion is desired. Cotter pins should not be reused."
Documented cross-references
Relations below are the cited document's statements. Check the controlling drawing and current standard before substitution.
- AN380-4-7 · substitute · MS24665-359
MS24665 Rev F p.8, Table VIII ↗
Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers