HT3C6
View detailed technical data, stock status, and sourcing information for: HT3C6
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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.
0.651 inches nominal fastener length, 0.276 inches minimum thread length, flat countersunk head style, 3a thread class, 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.276 inches minimum
- Fastener Length
- 0.651 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.297 inches minimum and 0.302 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Hardness Rating
- 45.0 rockwell c minimum and 49.0 rockwell c maximum
- Countersink Angle
- 100.0 degrees nominal
- Screw Material
- steel comp 431
- Screw Material Document And Classification
- qq-s-763 fed spec single material response
- Screw Surface Treatment
- passivate
- 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 |
|---|---|
| HT3C6 | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-803-0421?
Does the NSN 5305-00-803-0421 have a Schedule B code assigned?
Does NSN 5305-00-803-0421 require demilitarization?
Does NSN 5305-00-803-0421 contain precious materials?
Does NSN 5305-00-803-0421 contain hazardous materials?
When the NSN 5305-00-803-0421 was assigned to the Federal Catalog?
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