5305-01-266-8370
Find complete technical information, availability, and procurement data for: 5305-01-266-8370
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An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
1.063 inches minimum thread length, 2a thread class, hexagon head style, 1.438 inches minimum and 1.500 inches maximum fastener length, right-hand thread direction
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
- 1.063 inches minimum
- Fastener Length
- 1.438 inches minimum and 1.500 inches maximum
- Head Style
- hexagon
- Head Height
- 0.195 inches minimum and 0.211 inches maximum
- Width Between Flats
- 0.489 inches minimum and 0.500 inches maximum
- Shank Unthreaded Hole Diameter
- 0.074 inches minimum and 0.082 inches maximum first hole
- Nominal Thread Diameter
- 0.312 inches
- Thread Quantity Per Inch
- 18
- Minimum Tensile Strength
- 70000 pounds per square inch
- Hardness Rating
- 235.0 brinell b maximum overall
- Minimum Yield Strength
- 40000 pounds per square inch
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 1.385 inches minimum and 1.403 inches maximum first hole
- Surface Finish
- 63.0 microinches threads
- Material
- steel comp 410 or steel comp 416 or steel comp 430 overall
- Material Document And Classification
- 66 fed std all material responses overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 2 type and 10p style
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 |
|---|---|
| MS51109-36 | Hexagon Head Cap Screw |
FAQs
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When the NSN 5305-01-266-8370 was assigned to the Federal Catalog?
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