2451689-3
View detailed technical data, stock status, and sourcing information for: 2451689-3
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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.
3a thread class, patch or pellet or strip threads locking feature, right-hand thread direction, headless (setscrew) head style, 0.250 inches nominal 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
- Fastener Length
- 0.250 inches nominal
- Head Style
- headless (setscrew)
- Locking Feature
- patch or pellet or strip threads
- Point Style
- cup
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.112 inches
- Width Across Flats
- 0.050 inches nominal
- Thread Quantity Per Inch
- 40
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response 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 |
|---|---|
| 2451689-3 | Setscrew |
| AQM70CR440-4E | Setscrew |
FAQs
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What is the FSCG of the NSN 5305-01-182-3211?
Does the NSN 5305-01-182-3211 have a Schedule B code assigned?
Does NSN 5305-01-182-3211 require demilitarization?
Does NSN 5305-01-182-3211 contain precious materials?
Does NSN 5305-01-182-3211 contain hazardous materials?
When the NSN 5305-01-182-3211 was assigned to the Federal Catalog?
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