NSN 5305-00-842-1597 AS1040444, AS104-04-44, CA2730444
Product Details | CLOSE TOLERANCE SCREW
5305-00-842-1597 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: AS1040444, AS104-04-44, CA2730444, CA2730-4-44, CC00035444, CC00035-4-44, 5305-00-842-1597, 00-842-1597, 5305008421597, 008421597
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 23 DEC 1966 | 00-842-1597 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-00-842-1597
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Technical Data | NSN 5305-00-842-1597
| 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 | 0.290 INCHES MAXIMUM |
| FASTENER LENGTH | 3.188 INCHES MINIMUM AND 3.228 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 440C OVERALL |
| HEAD STYLE | C49 FLAT CHAMFER |
| HEAD DIAMETER | 0.3737 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM |
| HEAD HEIGHT | 0.263 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | D5 HEXAGON |
| WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| GRIP LENGTH | 2.750 INCHES MINIMUM AND 2.770 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.099 INCHES MINIMUM AND 0.119 INCHES MAXIMUM ALL HOLES |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM ALL HOLES |
| SPECIAL FEATURES | RETAINING ELEMENT IN SHANK |
Restrictions/Controls & Freight Information | NSN 5305-00-842-1597
| 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: | 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. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 093486 | BOLTS,NUTS OR SCREWS, NOI (SUB 3) |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 573 | unknown |
| Originating Activity Code | KZ | Defense Supply Center Philadelphia Philadelphia, PA 19101 |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |