8527031
View detailed technical data, stock status, and sourcing information for: 8527031
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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.
3b thread class, 0.384 inches minimum and 0.388 inches maximum pilot diameter, 0.146 inches minimum and 0.166 inches maximum pilot length, prevailing torque with nonmetallic insert locking feature, right-hand 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
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque with nonmetallic insert
- Pilot Diameter
- 0.384 inches minimum and 0.388 inches maximum
- Pilot Length
- 0.146 inches minimum and 0.166 inches maximum
- Nut Style
- spline
- Nut Diameter
- 0.508 inches minimum and 0.516 inches maximum
- Nut Height
- 0.344 inches nominal
- Thread Series
- unf
- Thread Quantity Per Inch
- 28
- Nominal Thread Size
- 0.250 inches
- Material
- plastic locking insert
- Material
- steel comp 1137 nut
- Material Document And Classification
- mil-s-866 mil spec single material response nut
- Surface Treatment
- cadmium nut
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 |
|---|---|
| 42ND2398-10-048 | Spline Self-Locking Nut |
| 52ND2398-10-048 | Spline Self-Locking Nut |
| 8527031 | Spline Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-582-5721?
Does the NSN 5310-00-582-5721 have a Schedule B code assigned?
Does NSN 5310-00-582-5721 require demilitarization?
Does NSN 5310-00-582-5721 contain precious materials?
Does NSN 5310-00-582-5721 contain hazardous materials?
When the NSN 5310-00-582-5721 was assigned to the Federal Catalog?
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