5305-01-479-4026
Find complete technical information, availability, and procurement data for: 5305-01-479-4026
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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, 1.750 inches nominal fastener length, 1.125 inches minimum thread length, 3a thread class, button head 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 1.125 inches minimum
- Fastener Length
- 1.750 inches nominal
- Head Style
- button
- Head Diameter
- 0.152 inches minimum and 0.166 inches maximum
- Head Height
- 0.527 inches minimum and 0.547 inches maximum
- Locking Feature
- patch threads
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.312 inches
- Width Across Flats
- 0.188 inches nominal
- Thread Quantity Per Inch
- 18
- Hardness Rating
- 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
- Special Features
- hydrogen embrittlement relief treatment required
- Material
- steel overall
- Material Document And Classification
- ff-s-86 fed spec single material response overall
- Surface Treatment
- zinc overall
- Surface Treatment Document And Classification
- qq-z-325,type ii,class 3 fed spec single treatment response overall
- Thread Series Designator
- unc
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 |
|---|---|
| 1611202-52 | Socket Head Cap Screw |
FAQs
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When the NSN 5305-01-479-4026 was assigned to the Federal Catalog?
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