13621-048-3
View detailed technical data, stock status, and sourcing information for: 13621-048-3
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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.
right-hand thread direction, 0.254 inches minimum nut counterbore diameter, dry film lubricant lubrication, prevailing torque all metal design locking feature, 3b 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
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque all metal design
- Counterbore Diameter
- 0.254 inches minimum nut
- Lubrication
- dry film lubricant
- Mounting Hole Diameter
- 0.098 inches minimum and 0.103 inches maximum
- Nut Style
- plate
- Nut Length
- 1.038 inches maximum
- Nut Height
- 0.402 inches maximum
- Plate Thickness
- 0.022 inches minimum and 0.093 inches maximum
- Nut Counterbore Depth
- 0.187 inches minimum nut
- Nut Mounting Provision
- straight holes
- Mounting Hole Arrangement Style
- 2 holes
- Distance From Aperture Center To Mounting Hole Center
- 0.495 inches minimum and 0.505 inches maximum
- Thread Series
- unjf
- Features Provided
- floating nut
- Thread Quantity Per Inch
- 28
- Nominal Thread Size
- 0.250 inches
- Material
- steel comp 1050 shell
- Material
- steel comp 4130 nut
- Material Document And Classification
- aisi assn std single material response shell
- Material Document And Classification
- sae assn std single material response nut
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec single treatment response overall
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 |
|---|---|
| 13621-048-3 | Plate Self-Locking Nut |
| C066-048-3 | Plate Self-Locking Nut |
| F29337-4-3 | Plate Self-Locking Nut |
| RM52LHA4309-3-048 | Plate Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-479-4155?
Does the NSN 5310-00-479-4155 have a Schedule B code assigned?
Does NSN 5310-00-479-4155 require demilitarization?
Does NSN 5310-00-479-4155 contain precious materials?
Does NSN 5310-00-479-4155 contain hazardous materials?
When the NSN 5310-00-479-4155 was assigned to the Federal Catalog?
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