2578828-001A
View detailed technical data, stock status, and sourcing information for: 2578828-001A
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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.
5.680 inches nominal fastener length, 0.390 inches nominal thread length, 0.140 inches nominal head height, 1.000 inches nominal head diameter, 3a thread class
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
- Thread Length
- 0.390 inches nominal
- Fastener Length
- 5.680 inches nominal
- Head Diameter
- 1.000 inches nominal
- Head Height
- 0.140 inches nominal
- Distance From Centerline To Flat
- 0.425 inches minimum and 0.435 inches maximum
- Shank Unthreaded Hole Diameter
- 0.109 inches nominal first hole
- Counterbore Diameter
- 0.240 inches nominal
- Counterbore Depth
- 0.040 inches nominal
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 |
|---|---|
| 2578828-001A | Internally Relieved Body Bolt |
FAQs
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What is the FSCG of the NSN 5306-00-495-3048?
Does NSN 5306-00-495-3048 require demilitarization?
Does NSN 5306-00-495-3048 contain precious materials?
Does NSN 5306-00-495-3048 contain hazardous materials?
When the NSN 5306-00-495-3048 was assigned to the Federal Catalog?
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