NSN 5305-00-688-1423 NAS338CPA24, NAS498, 00-688-1423
Product Details | CLOSE TOLERANCE SCREW
5305-00-688-1423 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: NAS338CPA24, NAS498, 5305-00-688-1423, 00-688-1423, 5305006881423, 006881423
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 01 JAN 1963 | 00-688-1423 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Demand History | NSN 5305-00-688-1423
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| NAS498 | 2013-08-229 | 250 | Canada |
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Technical Data | NSN 5305-00-688-1423
| Characteristic | Specifications |
|---|---|
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL |
| HEAD DIAMETER | 1.007 INCHES MINIMUM AND 1.017 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| GRIP DIAMETER | 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| HEAD STYLE | FLAT COUNTERSUNK |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| FASTENER LENGTH | 2.577 INCHES MINIMUM AND 2.624 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS338 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| GRIP LENGTH | 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| THREAD QUANTITY PER INCH | 20 |
| THREAD LENGTH | 0.756 INCHES MINIMUM AND 0.823 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD CLASS | 3A |
Restrictions/Controls & Freight Information | NSN 5305-00-688-1423
| 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. |
| 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 | XX | |
| 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 |