5305-01-157-1987
Find complete technical information, availability, and procurement data for: 5305-01-157-1987
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A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.
casehardened features provided, 7.4 millimeters minimum and 8.7 millimeters maximum head diameter, oval countersunk head style, 19.20 millimeters minimum and 20.80 millimeters maximum fastener length, 3.4 millimeters nominal spline major diameter
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Fastener Length
- 19.20 millimeters minimum and 20.80 millimeters maximum
- Head Style
- oval countersunk
- Head Diameter
- 7.4 millimeters minimum and 8.7 millimeters maximum
- Spline Major Diameter
- 3.4 millimeters nominal
- Features Provided
- casehardened
- Nonmachine Thread Style
- gimlet point (type a, ab or ba)
- Countersink Angle
- 90.0 degrees minimum and 92.0 degrees maximum
- Nonmachine Nominal Thread Diameter
- 4.2 millimeters
- Material
- steel overall
- Material Document And Classification
- aisi assn std all material responses overall
- Surface Treatment
- chromate overall
- Surface Treatment Document And Classification
- gm 4255-m mfr ref single treatment response overall
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-01-160-3943 | No Name Available | 08/01/1985 |
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