NSN 5305-00-351-4521 CA272040594, CA2720-4-0594, 00-351-4521
Product Details | CLOSE TOLERANCE SCREW
5305-00-351-4521 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: CA272040594, CA2720-4-0594, 5305-00-351-4521, 00-351-4521, 5305003514521, 003514521
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 25 MAR 1970 | 00-351-4521 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-00-351-4521
Cross Reference | NSN 5305-00-351-4521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CA2720-4-0594 | 29372 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
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Related Products | NSN 5305-00-351-4521
Technical Data | NSN 5305-00-351-4521
| 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 | 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM |
| FASTENER LENGTH | 1.124 INCHES MINIMUM AND 1.144 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | C50 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.568 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES MINIMUM |
| INTERNAL DRIVE STYLE | D8 TORQUE SET |
| GRIP LENGTH | 0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2480 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| SPECIAL FEATURES | RETAINING ELEMENT IN SHANK |
| MANUFACTURERS CODE | 29372 |
| DESIGN CONTROL REFERENCE | CA2720-4-0594 |
Restrictions/Controls & Freight Information | NSN 5305-00-351-4521
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| 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. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| 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. |
| 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 | 713 | 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 |