5305-01-059-7476
Find complete technical information, availability, and procurement data for: 5305-01-059-7476
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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, 0.489 inches minimum and 0.541 inches maximum thread length, 1.937 inches minimum and 1.969 inches maximum fastener length, flat countersunk head style, 3a thread class
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
- 0.489 inches minimum and 0.541 inches maximum
- Fastener Length
- 1.937 inches minimum and 1.969 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.929 inches minimum and 1.024 inches maximum
- Grip Diameter
- 0.4982 inches minimum and 0.4991 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 1.428 inches minimum and 1.448 inches maximum
- Thread Quantity Per Inch
- 20
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Countersink Angle
- 100.0 degrees nominal
- Surface Finish
- 63.0 microinches grip
- Material
- steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 3 fed spec single treatment response overall
- 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 |
|---|---|
| BACB30AB-P8-27A | Close Tolerance Screw |
FAQs
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