5305-00-206-1188
Find complete technical information, availability, and procurement data for: 5305-00-206-1188
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
right-hand thread direction, 0.375 inches minimum and 0.437 inches maximum thread length, round extended washer head style, 0.719 inches minimum and 0.781 inches maximum fastener length, 3a thread class
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
- 0.375 inches minimum and 0.437 inches maximum
- Fastener Length
- 0.719 inches minimum and 0.781 inches maximum
- Head Style
- round extended washer
- Head Diameter
- 0.437 inches nominal
- Head Height
- 0.096 inches minimum and 0.106 inches maximum
- Extended Washer Diameter
- 0.500 inches nominal
- Extended Washer Thickness
- 0.028 inches minimum and 0.033 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Screw Material
- steel
- Screw Surface Treatment
- cadmium
- Screw Surface Treatment Document And Classification
- an-p-61 fed spec single treatment response
- Thread Series Designator
- unf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-286-1137 | No Name Available | 01/02/1975 |
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 |
|---|---|
| 5305PL1525710 | Machine Screw |
| AN525-416R12 | Machine Screw |
FAQs
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Does NSN 5305-00-206-1188 require demilitarization?
Does NSN 5305-00-206-1188 contain precious materials?
Does NSN 5305-00-206-1188 contain hazardous materials?
When the NSN 5305-00-206-1188 was assigned to the Federal Catalog?
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Material | 4,914 |
| New Surplus | 1,295 |
| Serviceable | 15 |
| Total | 6,224 |