74D291033-2025
View detailed technical data, stock status, and sourcing information for: 74D291033-2025
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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.
1.720 inches nominal thread length, pan head style, right-hand thread direction, 3a thread class, 3.900 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
- 1.720 inches nominal
- Fastener Length
- 3.900 inches nominal
- Head Style
- pan
- Head Diameter
- 1.000 inches nominal
- Head Height
- 0.470 inches nominal
- Hole Diameter
- 0.270 inches nominal
- Shank Unthreaded Hole Diameter
- 0.250 inches minimum and 0.256 inches maximum first hole
- First Diameter From Head
- 0.470 inches nominal
- Second Diameter From Head
- 1.015 inches minimum and 1.025 inches maximum
- Third Diameter From Head
- 1.045 inches minimum and 1.055 inches maximum
- Fourth Diameter From Head
- 1.020 inches minimum and 1.030 inches maximum
- Distance From Largest Bearing Surface Of Head To End Of First Diameter
- 0.400 inches nominal
- Distance From Largest Bearing Surface Of Head To End Of Second Diameter
- 0.980 inches nominal
- Distance From Largest Bearing Surface Of Head To End Of Third Diameter
- 1.455 inches nominal
- Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
- 1.580 inches nominal
- Nominal Thread Diameter
- 1.125 inches
- Hole Quantity
- 1
- Hole Type
- drilled
- Thread Quantity Per Inch
- 20
- Hole Configuration Style
- round longitudinal hole
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 1.200 inches nominal first hole
- Externally Relieved Body Diameter Quantity
- 4
- Special Features
- countersunk hole at the end of threads,0.095 in. min,0.155 in. max dia; groove,0.580 in. lg from end,1.030 in. min,1.040 in. max dia
- Material
- steel comp xm-13 overall
- Material Document And Classification
- ams 5629 assn std single material response overall
- Thread Series Designator
- un
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 |
|---|---|
| 74D291033-2009 | Externally Relieved Body Bolt |
| 74D291033-2025 | Externally Relieved Body Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-303-3902?
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Does NSN 5306-01-303-3902 require demilitarization?
Does NSN 5306-01-303-3902 contain precious materials?
Does NSN 5306-01-303-3902 contain hazardous materials?
When the NSN 5306-01-303-3902 was assigned to the Federal Catalog?
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