NAS501-12-21
View detailed technical data, stock status, and sourcing information for: NAS501-12-21
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
3a thread class, right-hand thread direction, 1.061 inches minimum and 1.140 inches maximum thread length, 2.265 inches minimum and 2.312 inches maximum fastener length, hexagon head style
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
- 1.061 inches minimum and 1.140 inches maximum
- Fastener Length
- 2.265 inches minimum and 2.312 inches maximum
- Head Style
- hexagon
- Head Height
- 0.390 inches minimum and 0.422 inches maximum
- Width Between Flats
- 1.053 inches minimum and 1.066 inches maximum
- Shank Unthreaded Hole Diameter
- 0.141 inches nominal first hole
- Nominal Thread Diameter
- 0.750 inches
- Grip Length
- 1.172 inches minimum and 1.204 inches maximum
- Features Provided
- finished head
- Thread Quantity Per Inch
- 16
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 2.047 inches minimum and 2.079 inches maximum first hole
- Material
- steel comp 321 or steel comp 347 overall
- Material Document And Classification
- qq-s-763 fed spec 1st material response or qq-s-763 fed spec 2nd material response or ams 5645 assn std 3rd material response or ams 5646 assn std 4th material response overall
- Surface Treatment
- passivate overall
- Thread Series Designator
- unf
- Specification/Standard Data
- 80205-nas501 professional/industrial association standard
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 |
|---|---|
| NAS501-12-21 | Machine Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-038-4741?
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Does NSN 5306-01-038-4741 contain precious materials?
Does NSN 5306-01-038-4741 contain hazardous materials?
When the NSN 5306-01-038-4741 was assigned to the Federal Catalog?
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