P343-0021-000
View detailed technical data, stock status, and sourcing information for: P343-0021-000
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
0.375 inches nominal fastener length, 2a thread class, 0.375 inches minimum thread length, right-hand thread direction, pan no. 2 head style
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
- 0.375 inches minimum
- Fastener Length
- 0.375 inches nominal
- Head Style
- pan no. 2
- Head Diameter
- 0.205 inches minimum and 0.219 inches maximum
- Head Height
- 0.058 inches minimum and 0.068 inches maximum
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.112 inches
- Thread Quantity Per Inch
- 40
- Minimum Tensile Strength
- 80000 pounds per square inch
- Screw Material
- steel corrosion resisting
- Screw Material Document And Classification
- qq-s-763,300 series fed spec single material response or 66,300 series fed std single material response or comp 16-18 or 18-8 assn std single material response
- Screw Surface Treatment
- passivate
- Screw Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 1 type and 9s style
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-558-2876 | No Name Available | 01/01/1963 |
| 5305-00-579-3031 | No Name Available | 05/16/1967 |
| 5305-00-590-3175 | No Name Available | 06/20/1967 |
| 5305-00-702-8908 | No Name Available | 01/01/1960 |
| 5305-00-809-2911 | No Name Available | 05/16/1967 |
| 5305-00-813-3346 | No Name Available | 10/13/1967 |
| 5305-00-916-8307 | No Name Available | 10/04/1967 |
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| H79917-0406 | Machine Screw |
| P343-0021-000 | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-576-7493?
Does the NSN 5305-00-576-7493 have a Schedule B code assigned?
Does NSN 5305-00-576-7493 require demilitarization?
Does NSN 5305-00-576-7493 contain precious materials?
Does NSN 5305-00-576-7493 contain hazardous materials?
When the NSN 5305-00-576-7493 was assigned to the Federal Catalog?
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