NSN 5305-01-426-5683 NAS1581C3T20P, 01-426-5683, 014265683
Product Details | CLOSE TOLERANCE SCREW
5305-01-426-5683 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.
Part Alternates: NAS1581C3T20P, 5305-01-426-5683, 01-426-5683, 5305014265683, 014265683
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 14 MAR 1996 | 01-426-5683 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-01-426-5683
Cross Reference | NSN 5305-01-426-5683
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| NAS1581C3T20P | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES |
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Technical Data | NSN 5305-01-426-5683
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.348 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| FASTENER LENGTH | 1.598 INCHES MINIMUM AND 1.628 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| HEAD STYLE | C50 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.3047 INCHES NOMINAL |
| COUNTERSINK ANGLE | 101.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | D8 TORQUE SET |
| GRIP LENGTH | 1.250 INCHES NOMINAL |
| GRIP DIAMETER | 0.188 INCHES NOMINAL |
Restrictions/Controls & Freight Information | NSN 5305-01-426-5683
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Electro-static Discharge Susceptible: | A | No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||