8-52N-572-4-018
View detailed technical data, stock status, and sourcing information for: 8-52N-572-4-018
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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.
right-hand thread direction, 1.085 inches minimum and 1.125 inches maximum fastener length, 3a thread class, flat chamfer head style, 1.002 inches minimum and 1.125 inches maximum thread 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
- 1.002 inches minimum and 1.125 inches maximum
- Fastener Length
- 1.085 inches minimum and 1.125 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.550 inches minimum and 0.562 inches maximum
- Head Height
- 0.368 inches minimum and 0.375 inches maximum
- Hole Diameter
- 0.061 inches minimum and 0.067 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.375 inches
- Width Across Flats
- 0.3125 inches minimum and 0.3160 inches maximum
- Hole Quantity
- 6
- Hole Type
- drilled
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
- Minimum Yield Strength
- 155000 pounds per square inch
- Hole Configuration Style
- round internal hexagon
- Material
- steel overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 2 fed spec single treatment response overall
- Thread Series Designator
- unrf
- Specification/Standard Data
- 80205-nas1351 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 |
|---|---|
| 20717-003 FIND 49 | Socket Head Cap Screw |
| 20771-001 FIND 31 | Socket Head Cap Screw |
| 20789-001 FIND 48 | Socket Head Cap Screw |
| 20825-001 FIND 29 | Socket Head Cap Screw |
| 8-52N-572-4-018 | Socket Head Cap Screw |
| NAS1351-6H18P | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-287-5781?
Does the NSN 5305-01-287-5781 have a Schedule B code assigned?
Does NSN 5305-01-287-5781 require demilitarization?
Does NSN 5305-01-287-5781 contain precious materials?
Does NSN 5305-01-287-5781 contain hazardous materials?
When the NSN 5305-01-287-5781 was assigned to the Federal Catalog?
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