F12090-1-7
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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, dry film lubricant lubrication, 0.130 inches minimum and 0.135 inches maximum mounting hole diameter, 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
- Lubrication
- dry film lubricant
- Mounting Hole Diameter
- 0.130 inches minimum and 0.135 inches maximum
- Nut Style
- plate
- Nut Length
- 1.602 inches maximum
- Nut Height
- 0.400 inches maximum
- Plate Thickness
- 0.055 inches maximum
- Plate Width
- 0.859 inches maximum
- Nut Counterbore Depth
- 0.062 inches minimum nut
- Nut Mounting Provision
- straight holes
- Mounting Hole Arrangement Style
- 2 holes
- Distance From Aperture Center To Mounting Hole Center
- 0.620 inches minimum and 0.630 inches maximum
- Center To Center Distance Between Mounting Holes Along Length
- 1.248 inches minimum and 1.252 inches maximum
- Thread Series
- unjf
- Features Provided
- floating nut
- Thread Quantity Per Inch
- 20
- Nominal Thread Size
- 0.4375 inches
- Special Features
- nut dyed yellow
- Material
- steel corrosion resisting overall
- Material Document And Classification
- ams 5525 assn std single material response or ams 5735 assn std single material 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 |
|---|---|
| 10122048 | Plate Self-Locking Nut |
| BFN719C7M1 | Plate Self-Locking Nut |
| F12090-1-7 | Plate Self-Locking Nut |
| F50339-7-1 | Plate Self-Locking Nut |
| ST3M719C7M1 | Plate Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-01-049-1279?
Does the NSN 5310-01-049-1279 have a Schedule B code assigned?
Does NSN 5310-01-049-1279 require demilitarization?
Does NSN 5310-01-049-1279 contain precious materials?
Does NSN 5310-01-049-1279 contain hazardous materials?
When the NSN 5310-01-049-1279 was assigned to the Federal Catalog?
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