5310-01-439-3777
Find complete technical information, availability, and procurement data for: 5310-01-439-3777
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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, right-hand thread direction, prevailing torque with nonmetallic insert locking feature, 0.271 inches minimum and 0.291 inches maximum nut height, hexagon nut style
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
- Nut Style
- hexagon
- Nut Height
- 0.271 inches minimum and 0.291 inches maximum
- Width Across Flats
- 0.615 inches minimum and 0.627 inches maximum
- Temp Rating
- 250.0 fahrenheit maximum
- Thread Series
- unjf
- Thread Quantity Per Inch
- 20
- Hardness Rating
- 34.0 rockwell c minimum and 38.0 rockwell c maximum
- Nominal Thread Size
- 0.438 inches
- Bearing Surface Type
- chamfered
- Material
- steel comp 4130 overall except insert
- Material Document And Classification
- mil-s-6758 mil spec single material response overall except insert
- Surface Treatment
- cadmium and chromate overall except insert
- Surface Treatment Document And Classification
- qq-p-416, ty 2, cl 2 fed spec single treatment response overall except insert
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 |
|---|---|
| 03A251-7 | Hexagon Self-Locking Nut |
| AD03A251-7 | Hexagon Self-Locking Nut |
| H52874-7 | Hexagon Self-Locking Nut |
| T-1156-7 | Hexagon Self-Locking Nut |
FAQs
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When the NSN 5310-01-439-3777 was assigned to the Federal Catalog?
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