S70984-G42-27
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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.
2a thread class, flat chamfer head style, right-hand thread direction, 1.724 inches minimum and 1.776 inches maximum fastener length, 0.219 inches minimum and 0.281 inches maximum thread 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.219 inches minimum and 0.281 inches maximum
- Fastener Length
- 1.724 inches minimum and 1.776 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.344 inches minimum and 0.406 inches maximum
- Head Height
- 0.156 inches minimum and 0.218 inches maximum
- Shoulder Diameter
- 0.246 inches minimum and 0.249 inches maximum first shoulder
- Shoulder Length
- 1.495 inches minimum and 1.505 inches maximum first shoulder
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Shoulder Shape
- round first shoulder
- Material
- steel comp 303 overall
- Surface Treatment
- passivate overall
- Thread Series Designator
- unc
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 |
|---|---|
| 540735-027 | Shoulder Screw |
| 540735-27 | Shoulder Screw |
| G42-027 | Shoulder Screw |
| G42-27 | Shoulder Screw |
| S70984-G42-27 | Shoulder Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-451-8924?
Does the NSN 5305-00-451-8924 have a Schedule B code assigned?
Does NSN 5305-00-451-8924 require demilitarization?
Does NSN 5305-00-451-8924 contain precious materials?
Does NSN 5305-00-451-8924 contain hazardous materials?
When the NSN 5305-00-451-8924 was assigned to the Federal Catalog?
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