|
|
|
National Stock Number:
5306-01-559-4862
Federal Supply Class:
5306
National Item Identification Number:
015594862
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:
| 70400-26802-103 | 27541 | TRANSAERO, INC. | | 70400-26802-103 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SLB163-103 | 16258 | SPACE-LOK, INC. | | AS422-103 | 84256 | AVIBANK MFG., INC. |
|
Techincal Specification:
| GRIP LENGTH | 2.375 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD STYLE | CROWNED HEXAGON | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,SPECIAL,SELF-RETAINING | | MATERIAL | STEEL CORROSION RESISTING HEAD | | MATERIAL | STEEL CORROSION RESISTING SPRING | | MINIMUM TENSILE STRENGTH | 575 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | BOLT BODY: A286 CRES SOLUTION HEAT TREATED AND WORK STRENGTHENED I/A/W WAMS 5853, PAWL: PH 13-8 MO, AMS 5629 OR A-286 CRES PER AMS 5737,SPRING: CRES WIRE PER QQ-W-423,COMP 302 OR 304, PLUG: 300 SERIES CRES PER QQ-S-763 OR MIL-S-7720,GROOVE PIN: 300 SERIES CRES PER QQ-S-763 OR MIL-S-7720 | | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE BEARING SURFACE OF HEAD | | THREAD SERIES DESIGNATOR | UNJF |
|
|