NAS1741-3R8
View detailed technical data, stock status, and sourcing information for: NAS1741-3R8
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
right-hand thread direction, 3a thread class, 0.484 inches minimum and 0.516 inches maximum fastener length, flat countersunk head style, 0.342 inches minimum and 0.436 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
- 0.342 inches minimum and 0.436 inches maximum
- Fastener Length
- 0.484 inches minimum and 0.516 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.322 inches minimum and 0.385 inches maximum
- Locking Feature
- patch threads
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp 4140 or steel comp e4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1741 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 |
|---|---|
| NAS1741-3R8 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-233-7771?
Does the NSN 5305-01-233-7771 have a Schedule B code assigned?
Does NSN 5305-01-233-7771 require demilitarization?
Does NSN 5305-01-233-7771 contain precious materials?
Does NSN 5305-01-233-7771 contain hazardous materials?
When the NSN 5305-01-233-7771 was assigned to the Federal Catalog?
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