5307-00-637-1921
Find complete technical information, availability, and procurement data for: 5307-00-637-1921
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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, right-hand nut thread thread direction, 0.500 inches minimum nut thread thread length, +0.2883 to 0.2909 inches stud thread thread pitch diameters, 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 Pitch Diameters
- +0.2883 to 0.2909 inches stud thread
- Thread Direction
- right-hand nut thread
- Thread Direction
- right-hand stud thread
- Thread Length
- 0.500 inches minimum nut thread
- Thread Length
- 0.346 inches maximum stud thread
- Thread Quantity Per Inch
- 18 stud thread
- Thread Quantity Per Inch
- 28 nut thread
- Hardness Rating
- 26.0 rockwell c minimum and 32.0 rockwell c maximum
- Nominal Thread Size
- 0.250 inches nut thread
- Nominal Thread Size
- 0.312 inches stud thread
- Material
- steel comp 8740
- Material Document And Classification
- ams 6322 assn std single material response
- Surface Treatment
- cadmium overall
- Thread Series Designator
- unc stud thread
- Thread Series Designator
- unf nut thread
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5307-00-603-9318 | No Name Available | 01/01/1963 |
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 |
|---|---|
| 179137P008 | Shouldered and Stepped Stud |
| 179137P8 | Shouldered and Stepped Stud |
| AS179137P008 | Shouldered and Stepped Stud |
FAQs
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Does NSN 5307-00-637-1921 contain hazardous materials?
When the NSN 5307-00-637-1921 was assigned to the Federal Catalog?
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