|
|
|
National Stock Number:
5306-01-541-5242
Federal Supply Class:
5306
National Item Identification Number:
015415242
Description:
BOLT,CLOSE TOLERANCE
Detail:
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.
|
Manufacturer Information:
| 3M1263-5-20 | 76301 | THE BOEING COMPANY | | 93784-5-20 | 56878 | SPS TECHNOLOGIES, LLC | | PBF1626-5-20 | 27624 | SPS TECHNOLOGIES LLC |
|
Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.325 INCHES NOMINAL | | EXTENDED WASHER THICKNESS | 0.045 INCHES NOMINAL | | FASTENER LENGTH | 1.801 INCHES NOMINAL | | GRIP DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | GRIP LENGTH | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD MINOR DIAMETER | 0.375 INCHES NOMINAL | | HEAD STYLE | SPLINE EXTENDED WASHER | | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY: BOLT, CLOSE TOLERANCE; DWG: BOLT - CLOSE TOLERANCE, SPLINE DRIVE, FLANGE HEAD (145 KSI FSU) CRES | | MATERIAL DOCUMENT AND CLASSIFICATION | M+35 PER AMS 5758 OR AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MINIMUM TENSILE STRENGTH | 13500 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.313 INCHES | | SPECIAL FEATURES | WRENCHING ELEMENT NUMBER 12; NON-DRILLED SHANK | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.551 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
|
|