5305-01-044-2243
Find complete technical information, availability, and procurement data for: 5305-01-044-2243
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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.
right-hand thread direction, 0.443 inches minimum and 0.510 inches maximum thread length, 1.078 inches minimum and 1.125 inches maximum fastener length, 3a thread class, flat countersunk undercut 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.443 inches minimum and 0.510 inches maximum
- Fastener Length
- 1.078 inches minimum and 1.125 inches maximum
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.502 inches minimum and 0.507 inches maximum
- Head Height
- 0.071 inches minimum and 0.073 inches maximum
- Grip Diameter
- 0.2490 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.615 inches minimum and 0.635 inches maximum
- Thread Quantity Per Inch
- 28
- Countersink Angle
- 100.0 degrees nominal
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Special Features
- cetyl alcohol lubrication
- Material
- steel overall
- Surface Treatment
- passivate overall
- Thread Series Designator
- unjf
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| Part Number | Name |
|---|---|
| CHT4020-4-10 | Close Tolerance Screw |
| HT4020-4-10 | Close Tolerance Screw |
| ST3M652C4-10D | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-044-2243 was assigned to the Federal Catalog?
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