7S39-3A3
View detailed technical data, stock status, and sourcing information for: 7S39-3A3
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
0.338 inches minimum thread length, flat countersunk head style, right-hand thread direction, 0.525 inches nominal fastener length, 3a thread class
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
- 0.338 inches minimum
- Fastener Length
- 0.525 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.297 inches minimum and 0.302 inches maximum
- 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
- Countersink Angle
- 100.0 degrees nominal
- Screw Material
- steel comp 4130
- Screw Material Document And Classification
- mil-s-6758 mil spec single material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416,type 2,class 3 fed spec single treatment response
- Thread Series Designator
- unf
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 |
|---|---|
| 5305PL1331060 | Machine Screw |
| 7S39-3A3 | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-824-7349?
Does the NSN 5305-00-824-7349 have a Schedule B code assigned?
Does NSN 5305-00-824-7349 require demilitarization?
Does NSN 5305-00-824-7349 contain precious materials?
Does NSN 5305-00-824-7349 contain hazardous materials?
When the NSN 5305-00-824-7349 was assigned to the Federal Catalog?
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