NSN 5305-00-487-5261 AIC1023V420, AIC1023V4-20, C387V420
Product Details | CLOSE TOLERANCE SCREW
5305-00-487-5261 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: AIC1023V420, AIC1023V4-20, C387V420, C387V4-20, CS318642V420, CS318642V4-20, HR101V420, HR101V4-20, VT1039V420, VT1039V4-20, 64040V420, 64040V4-20, 5305-00-487-5261, 00-487-5261, 5305004875261, 004875261
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 03 FEB 2004 | 00-487-5261 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-00-487-5261
Cross Reference | NSN 5305-00-487-5261
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 64040V4-20 | 56878 | SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION |
| 64040V4-20 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
| AIC1023V4-20 | 06725 | SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES |
| C387V4-20 | 81755 | LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS |
| CS318642V4-20 | 93907 | TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS |
| HR101V4-20 | 73197 | HI-SHEAR CORPORATION |
| HR101V4-20 | L4528 | LISI AEROSPACE CANADA CORP |
| VT1039V4-20 | 92215 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
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Technical Data | NSN 5305-00-487-5261
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.352 INCHES MINIMUM AND 0.402 INCHES MAXIMUM |
| FASTENER LENGTH | 1.612 INCHES MINIMUM AND 1.642 INCHES MAXIMUM |
| MATERIAL | TITANIUM ALLOY UNS R54520 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | NAS 621, 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | C50 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.412 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | D8 TORQUE SET |
| GRIP LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS |
Restrictions/Controls & Freight Information | NSN 5305-00-487-5261
| 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. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| 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 | ||