NAS1974C38DT
View detailed technical data, stock status, and sourcing information for: NAS1974C38DT
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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.
2.785 inches minimum and 2.815 inches maximum fastener length, 3a thread class, flat countersunk head style, 0.425 inches nominal thread length, right-hand thread direction
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
- 0.425 inches nominal
- Fastener Length
- 2.785 inches minimum and 2.815 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.449 inches minimum and 0.507 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 2.365 inches minimum and 2.385 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 180000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Part Name Assigned By Controlling Agency
- navy special project
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 |
|---|---|
| NAS1974C38DT | Close Tolerance Screw |
FAQs
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What is the FSCG of the NSN 5305-01-338-4058?
Does NSN 5305-01-338-4058 require demilitarization?
Does NSN 5305-01-338-4058 contain precious materials?
Does NSN 5305-01-338-4058 contain hazardous materials?
When the NSN 5305-01-338-4058 was assigned to the Federal Catalog?
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