5305-01-494-8586
Find complete technical information, availability, and procurement data for: 5305-01-494-8586
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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.
3a thread class, 1.2970 inches minimum and 2.1195 inches maximum fastener length, 0.625 inches minimum and 0.672 inches maximum thread length, right-hand thread direction, flat countersunk undercut 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
- 0.625 inches minimum and 0.672 inches maximum
- Fastener Length
- 1.2970 inches minimum and 2.1195 inches maximum
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.7556 inches minimum and 0.7604 inches maximum
- Head Height
- 0.1147 inches minimum and 0.1167 inches maximum
- Grip Diameter
- 0.3740 inches minimum and 0.3745 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.3750 inches
- Grip Length
- 1.4275 inches minimum and 1.4475 inches maximum
- Thread Quantity Per Inch
- 24
- Part Name Assigned By Controlling Agency
- navy special project
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 |
|---|---|
| HT4020-6-23 | Close Tolerance Screw |
| ST3M652C6-23D | Close Tolerance Screw |
FAQs
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