WC4057-5-9A
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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.
0.507 inches minimum and 0.557 inches maximum thread length, flat countersunk undercut head style, 3a thread class, 1.079 inches minimum and 1.109 inches maximum fastener 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
- 0.507 inches minimum and 0.557 inches maximum
- Fastener Length
- 1.079 inches minimum and 1.109 inches maximum
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.629 inches minimum and 0.633 inches maximum
- Head Height
- 0.088 inches minimum and 0.090 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.552 inches minimum and 0.572 inches maximum
- Thread Quantity Per Inch
- 24
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Special Features
- furnished with one o-ring
- Material
- steel comp xm-13 overall
- Surface Treatment
- aluminum and chromate overall
- Surface Treatment Document And Classification
- mil-c-83488,type2,class 3 mil 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 |
|---|---|
| 11881C5-9A | Close Tolerance Screw |
| 3M925C5-9A | Close Tolerance Screw |
| CHT4067-5-9A | Close Tolerance Screw |
| HT4067-5-9A | Close Tolerance Screw |
| WC4057-5-9A | Close Tolerance Screw |
| WC4067-5-9 | Close Tolerance Screw |
| WC4067-5-9A | Close Tolerance Screw |
FAQs
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What is the FSCG of the NSN 5305-01-110-7905?
Does the NSN 5305-01-110-7905 have a Schedule B code assigned?
Does NSN 5305-01-110-7905 require demilitarization?
Does NSN 5305-01-110-7905 contain precious materials?
Does NSN 5305-01-110-7905 contain hazardous materials?
When the NSN 5305-01-110-7905 was assigned to the Federal Catalog?
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