5305-00-031-1136
Find complete technical information, availability, and procurement data for: 5305-00-031-1136
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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.
0.250 inches minimum and 0.317 inches maximum thread length, flat countersunk head style, 3a thread class, right-hand thread direction, 0.698 inches minimum and 0.745 inches maximum fastener length
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
- 0.250 inches minimum and 0.317 inches maximum
- Fastener Length
- 0.698 inches minimum and 0.745 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.296 inches minimum and 0.301 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.428 inches minimum and 0.448 inches maximum
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Countersink Angle
- 100.0 degrees nominal
- Surface Finish
- 32.0 microinches grip
- Material
- steel comp 4340 or steel comp 4140 or steel comp 8740 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 2 fed spec all treatment responses overall
- Thread Series Designator
- unjf
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 |
|---|---|
| 51B581-3-7 | Close Tolerance Screw |
FAQs
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