S77720
View detailed technical data, stock status, and sourcing information for: S77720
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An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
2a thread class, knurled no. 1 head style, 0.250 inches nominal thread length, 0.875 inches nominal fastener length, right-hand thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.250 inches nominal
- Fastener Length
- 0.875 inches nominal
- Head Style
- knurled no. 1
- Head Diameter
- 0.500 inches nominal
- Head Height
- 0.188 inches nominal
- Shoulder Diameter
- 0.112 inches nominal first shoulder
- Shoulder Length
- 0.375 inches nominal first shoulder
- Point Style
- flat
- Nominal Thread Diameter
- 0.164 inches
- Thread Quantity Per Inch
- 32
- Shoulder Shape
- round first shoulder
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel overall
- Thread Series Designator
- unc
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 |
|---|---|
| S77720 | Thumbscrew |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-072-8448?
Does the NSN 5305-00-072-8448 have a Schedule B code assigned?
Does NSN 5305-00-072-8448 require demilitarization?
Does NSN 5305-00-072-8448 contain precious materials?
Does NSN 5305-00-072-8448 contain hazardous materials?
When the NSN 5305-00-072-8448 was assigned to the Federal Catalog?
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