5305-01-181-2490
Find complete technical information, availability, and procurement data for: 5305-01-181-2490
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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.
flat chamfer head style, 0.480 inches minimum and 0.500 inches maximum thread length, 2.235 inches minimum and 2.255 inches maximum fastener length, right-hand thread direction, 3a thread class
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
- 0.480 inches minimum and 0.500 inches maximum
- Fastener Length
- 2.235 inches minimum and 2.255 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.543 inches minimum and 0.562 inches maximum
- Head Height
- 0.240 inches minimum and 0.260 inches maximum
- Shoulder Diameter
- 0.371 inches minimum and 0.373 inches maximum first shoulder
- Shoulder Length
- 1.745 inches minimum and 1.755 inches maximum first shoulder
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.312 inches
- Width Across Flats
- 0.188 inches nominal
- Thread Quantity Per Inch
- 18
- Shoulder Shape
- round first shoulder
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- nickel alloy 400 overall
- Material Document And Classification
- qq-n-281,comp a fed spec single material 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 |
|---|---|
| 5562235 PIECE 259 | Shoulder Screw |
| NICU-MS51975-22 | Shoulder Screw |
FAQs
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When the NSN 5305-01-181-2490 was assigned to the Federal Catalog?
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