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National Stock Number:
5306-01-536-4429
Federal Supply Class:
5306
National Item Identification Number:
015364429
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.
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Manufacturer Information:
| 11861E4D4A | 59563 | REID PRODUCTS INC. | | 3M1277E4D4A | 06710 | VALLEY-TODECO, INC. | | 3M1277E4D4A | 0K6Z0 | SATURN FASTENERS INC | | 3M1277E4D4A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1277E4D4A | 1EM77 | B & B SPECIALTIES INC | | 3M1277E4D4A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M1277E4D4A | 4WL75 | CAMCAR LLC DIV CAMCAR LLC | | 3M1277E4D4A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M1277E4D4A | 76301 | THE BOEING COMPANY | | TX1027E4D4XA | 06725 | SPS TECHNOLOGIES, LLC | | TX1027E4D4XA | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027E4D4XA | 0PTK6 | SPS TECHNOLOGIES INC | | TX1027E4D4XA | 27624 | SPS TECHNOLOGIES LLC | | TX1027E4D4XA | 56878 | SPS TECHNOLOGIES, LLC | | TX1027E4D4XA | 73197 | HI-SHEAR CORPORATION | | TX1027E4D4XA | 80539 | SPS TECHNOLOGIES, LLC | | TX1027E4D4XA | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC1277E4D4A | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | AGAV | | FASTENER LENGTH | 0.660 INCHES MINIMUM AND 0.690 INCHES MAXIMUM | | GRIP DIAMETER | 0.2646 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM | | GRIP LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD DIAMETER | 0.265 INCHES MINIMUM AND 0.272 INCHES MAXIMUM | | HEAD HEIGHT | 0.057 INCHES NOMINAL | | HEAD STYLE | FILLISTER COUNTERSUNK | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEG REDUCED HEAD,GEAR DRIVE RECESS,INCONEL 718 (125 KSI SHEAR),0.0156 INCH OVERSIZE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | INTERNAL DRIVE RECESS PER NAS 1800 | | SUPPLEMENTARY FEATURES | 0.076 INCH DIA COTTER PIN HOLE AT THE TIP OF THE BOLT 0.106 INCH FROM THE END | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-87132,TY 1,GR B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.410 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF |
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