5305-01-145-9178
Find complete technical information, availability, and procurement data for: 5305-01-145-9178
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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.
right-hand thread direction, flat countersunk head style, 0.560 inches minimum and 0.590 inches maximum thread length, 1.753 inches minimum and 1.773 inches maximum fastener length, 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
- 0.560 inches minimum and 0.590 inches maximum
- Fastener Length
- 1.753 inches minimum and 1.773 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.748 inches minimum and 0.754 inches maximum
- Grip Diameter
- 0.4985 inches minimum and 0.4995 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.438 inches
- Grip Length
- 1.183 inches minimum and 1.193 inches maximum
- Width Across Flats
- 0.190 inches minimum and 0.193 inches maximum
- Thread Quantity Per Inch
- 20
- Countersink Angle
- 100.0 degrees nominal
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel comp 431 overall
- Material Document And Classification
- ams5628 assn std single material response or mil-s-18732 mil spec single material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
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 |
|---|---|
| GB510DF8-19 | Close Tolerance Screw |
| HL403-16-19# | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-145-9178 was assigned to the Federal Catalog?
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