1027301-8-7
View detailed technical data, stock status, and sourcing information for: 1027301-8-7
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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.
3a thread class, round head style, right-hand thread direction, 0.438 inches minimum thread length, 0.438 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
- 0.438 inches minimum
- Fastener Length
- 0.438 inches nominal
- Head Style
- round
- Head Diameter
- 0.287 inches minimum and 0.309 inches maximum
- Head Height
- 0.107 inches minimum and 0.120 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.164 inches
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 60000 pounds per square inch
- Screw Material
- steel
- Screw Material Document And Classification
- qq-s-634 fed spec single material response or qq-s-637 fed spec single material response or 66 fed std single material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416 fed spec all treatment responses
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 3 type and 1c style and 1 design
- Departure From Cited Designator
- as modified by thread class
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-144-3719 | No Name Available | 01/01/1963 |
| 5305-00-600-4531 | No Name Available | 01/01/1963 |
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 |
|---|---|
| 1027301-8-7 | Machine Screw |
| 1177-8-7 | Machine Screw |
| 415 753 | Machine Screw |
| AN515-8R7 | Machine Screw |
| SW10-21 | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-206-0537?
Does the NSN 5305-00-206-0537 have a Schedule B code assigned?
Does NSN 5305-00-206-0537 require demilitarization?
Does NSN 5305-00-206-0537 contain precious materials?
Does NSN 5305-00-206-0537 contain hazardous materials?
When the NSN 5305-00-206-0537 was assigned to the Federal Catalog?
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