AES43M508020BC4AA1
View detailed technical data, stock status, and sourcing information for: AES43M508020BC4AA1
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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.
20.0 millimeters nominal thread length, flat chamfer head style, right-hand thread direction, 8.27 millimeters minimum and 8.50 millimeters maximum head diameter, 20.0 millimeters nominal fastener length
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Direction
- right-hand
- Thread Length
- 20.0 millimeters nominal
- Fastener Length
- 20.0 millimeters nominal
- Head Style
- flat chamfer
- Head Diameter
- 8.27 millimeters minimum and 8.50 millimeters maximum
- Head Height
- 4.86 millimeters minimum and 5.00 millimeters maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 5.0 millimeters
- Width Across Flats
- 4.0 millimeters nominal
- Thread Pitch In Millimeters
- 0.8
- External Thread Tolerance Class
- 6h
- Material
- steel property class 12.9 overall
- Surface Treatment
- zinc and chromate overall
- Surface Treatment Document And Classification
- qq-z-325, ty2,cl3 fed spec single treatment response overall
- Thread Series Designator
- m
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 |
|---|---|
| AES43M508020BC4AA1 | Socket Head Cap Screw |
| B1831BH050020N | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-423-7139?
Does the NSN 5305-01-423-7139 have a Schedule B code assigned?
Does NSN 5305-01-423-7139 require demilitarization?
Does NSN 5305-01-423-7139 contain precious materials?
Does NSN 5305-01-423-7139 contain hazardous materials?
When the NSN 5305-01-423-7139 was assigned to the Federal Catalog?
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