680388
View detailed technical data, stock status, and sourcing information for: 680388
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A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.
3a nut thread thread class, 3a stud thread thread class, 0.469 inches maximum stud thread thread length, right-hand nut thread thread direction, right-hand stud thread thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a nut thread
- Thread Class
- 3a stud thread
- Thread Direction
- right-hand nut thread
- Thread Direction
- right-hand stud thread
- Thread Length
- 0.469 inches maximum stud thread
- Thread Length
- 0.875 inches maximum nut thread
- Overall Length
- 2.242 inches minimum and 2.272 inches maximum
- Length Of Recessed Portion Of Shank
- 0.057 inches minimum and 0.067 inches maximum
- Diameter Of Recessed Portion Of Shank
- 0.290 inches minimum and 0.296 inches maximum
- Thread Quantity Per Inch
- 16 stud thread
- Thread Quantity Per Inch
- 24 nut thread
- Nominal Thread Size
- 0.375 inches nut thread
- Nominal Thread Size
- 0.375 inches stud thread
- Surface Finish
- 125.0 microinches overall
- Material
- steel comp 302
- Material Document And Classification
- mil-s-7720,cond b mil spec single material response
- Surface Treatment
- passivate overall
- Style Designator
- recessed
- Thread Series Designator
- unc stud thread
- Thread Series Designator
- unf nut thread
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 680388 | Recessed Stud |
FAQs
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