8S4U
View detailed technical data, stock status, and sourcing information for: 8S4U
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A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
round head style, right-hand thread direction, 2a thread class, 0.188 inches minimum thread length, 0.250 inches 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 Class
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.188 inches minimum
- Fastener Length
- 0.250 inches nominal
- Head Style
- round
- Head Diameter
- 0.287 inches minimum and 0.309 inches maximum
- Head Height
- 0.107 inches minimum and 0.119 inches maximum
- Washer Quantity
- 1
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.164 inches
- Thread Quantity Per Inch
- 32
- Primary Washer Outside Diameter
- 0.327 inches minimum and 0.338 inches maximum
- Primary Washer Style
- flat internal teeth
- Primary Washer Material Thickness
- 0.020 inches nominal
- Material
- steel overall
- Surface Treatment
- cadmium or zinc overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-647-2056 | No Name Available | 02/05/1969 |
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:
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-042-0461?
Does the NSN 5305-00-042-0461 have a Schedule B code assigned?
Does NSN 5305-00-042-0461 require demilitarization?
Does NSN 5305-00-042-0461 contain precious materials?
Does NSN 5305-00-042-0461 contain hazardous materials?
When the NSN 5305-00-042-0461 was assigned to the Federal Catalog?
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Pricing
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