NSN 5306-01-103-7903 01-103-7903, 011037903
Product Details | CLOSE TOLERANCE BOLT
5306-01-103-7903 An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
Part Alternates: 5306-01-103-7903, 01-103-7903, 5306011037903, 011037903
Hardware and Abrasives | Bolts
Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | 01-103-7903 | 27851 ( BOLT, CLOSE TOLERANCE ) |
Cross Reference | NSN 5306-01-103-7903
Part Number | Cage Code | Manufacturer |
---|---|---|
106467-4-120 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
121673-4-120 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
AS194-4-120 | 84256 | AVIBANK MFG., INC. |
CA4510-4-120 | 29372 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
MS27576-4-120 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES |
MS27576-4-120 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS |
ST3M735-4-120 | 76301 | BOEING COMPANY, THE DBA BOEING |
ST3M735-4-120 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
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Technical Data | NSN 5306-01-103-7903
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 | 0.282 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
FASTENER LENGTH | 7.918 INCHES MINIMUM AND 7.938 INCHES MAXIMUM |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 4130 OR STEEL COMP 6150 OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | C3 DISHED HEXAGON |
HEAD HEIGHT | 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
GRIP LENGTH | 7.500 INCHES MINIMUM AND 7.516 INCHES MAXIMUM |
GRIP DIAMETER | 0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD 63.0 MICROINCHES GRIP |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 7.818 INCHES MINIMUM AND 7.848 INCHES MAXIMUM FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
SPECIAL FEATURES | DETENT RING IN SHANK |
Restrictions/Controls & Freight Information | NSN 5306-01-103-7903
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 |
Category | Code | Description |
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No Freight Information |