NSN 5305-01-263-5618 3M96343, 3M963-4-3, 3M9634L3
Product Details | CLOSE TOLERANCE SCREW
5305-01-263-5618 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: 3M96343, 3M963-4-3, 3M9634L3, 3M963-4L3, 5305-01-263-5618, 01-263-5618, 5305012635618, 012635618
Hardware and Abrasives | Screws
Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | 16 SEP 1987 | 01-263-5618 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Cross Reference | NSN 5305-01-263-5618
Part Number | Cage Code | Manufacturer |
---|---|---|
3M963-4-3 | 76301 | BOEING COMPANY, THE DBA BOEING |
3M963-4L3 | 06725 | SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES |
3M963-4L3 | 06950 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
3M963-4L3 | 17446 | HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS |
3M963-4L3 | 58845 | ABOUNDING SECURITY INC DIV OF MAA CORP |
3M963-4L3 | 76301 | BOEING COMPANY, THE DBA BOEING |
3M963-4L3 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
3M963-4L3 | 97928 | HUCK INTL INC |
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Technical Data | NSN 5305-01-263-5618
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
THREAD QUANTITY PER INCH | 28 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM |
FASTENER LENGTH | 0.642 INCHES MINIMUM AND 0.672 INCHES MAXIMUM |
MATERIAL | STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | ALUMINUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488,TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
HEAD STYLE | C54 OVAL COUNTERSUNK |
HEAD DIAMETER | 0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM |
COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
INTERNAL DRIVE STYLE | D8 TORQUE SET |
GRIP LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
SURFACE FINISH | 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS |
SPECIFICATION/STANDARD DATA | 76301-3M963 MANUFACTURERS STANDARD |
Restrictions/Controls & Freight Information | NSN 5305-01-263-5618
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 |
---|---|---|
No Freight Information |