5305-01-271-3248
Find complete technical information, availability, and procurement data for: 5305-01-271-3248
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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.
3a thread class, double hexagon extended washer head style, 1.578 inches minimum and 1.750 inches maximum thread length, right-hand thread direction, 1.750 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 1.578 inches minimum and 1.750 inches maximum
- Fastener Length
- 1.750 inches nominal
- Head Style
- double hexagon extended washer
- Head Height
- 0.616 inches minimum and 0.625 inches maximum
- Width Between Flats
- 0.558 inches minimum and 0.566 inches maximum
- Extended Washer Diameter
- 0.863 inches minimum and 0.875 inches maximum
- Extended Washer Thickness
- 0.255 inches minimum and 0.275 inches maximum
- Nominal Thread Diameter
- 0.625 inches
- Thread Quantity Per Inch
- 11
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 48.0 rockwell c maximum
- Screw Material
- steel
- Screw Material Document And Classification
- 66 fed std single material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 3 fed spec single treatment response
- Thread Surface Finish
- 63.0 microinches
- 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 |
|---|---|
| 5/8-11 UNC-3AX1.750LG | Machine Screw |
| M24240/3-21014 | Machine Screw |
| MIL-S-24240/3-21014 | Machine Screw |
FAQs
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