NSN 5305-01-255-0096 51B3347X, 51B334-7X, 01-255-0096
Product Details | CLOSE TOLERANCE SCREW
5305-01-255-0096 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: 51B3347X, 51B334-7X, 5305-01-255-0096, 01-255-0096, 5305012550096, 012550096
Hardware and Abrasives | Screws
Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | 14 MAY 1987 | 01-255-0096 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Cross Reference | NSN 5305-01-255-0096
Part Number | Cage Code | Manufacturer |
---|---|---|
51B334-7X | 06725 | SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES |
51B334-7X | 06950 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
51B334-7X | 0JRC1 | NORTHROP GRUMMAN TECHNICAL SERVICES, INC. |
51B334-7X | 27624 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
51B334-7X | 73197 | HI-SHEAR CORPORATION |
51B334-7X | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE |
51B334-7X | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
51B334-7X | 92215 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
51B334-7X | L4528 | LISI AEROSPACE CANADA CORP |
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Technical Data | NSN 5305-01-255-0096
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNJC |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
THREAD QUANTITY PER INCH | 28 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.306 INCHES MINIMUM AND 0.326 INCHES MAXIMUM |
FASTENER LENGTH | 0.743 INCHES MINIMUM AND 0.763 INCHES MAXIMUM |
MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
HEAD STYLE | C50 FLAT COUNTERSUNK |
HEAD DIAMETER | 0.499 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
INTERNAL DRIVE STYLE | D8 TORQUE SET |
GRIP LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
GRIP DIAMETER | 0.2640 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM |
SPECIAL FEATURES | 0.0156 IN. OVERSIZE SHANK FOR REPAIR WORK ONLY |
Restrictions/Controls & Freight Information | NSN 5305-01-255-0096
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 |
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No Freight Information |