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National Stock Number:
5306-01-122-3198
Federal Supply Class:
5306
National Item Identification Number:
011223198
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:
| 10115766 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 740410773-2001 | 2M490 | NASSAU TOOL WORKS, INC | | 740410773-2001 | 32168 | ALL TOOLS INC. DBA E2 PRECISION PRODUCTS | | 740410773-2001 | 35962 | SAFRAN LANDING SYSTEMS CANADA INC | | 740410773-2001 | 50601 | CIRCOR AEROSPACE, INC. | | 740410773-2001 | 59563 | REID PRODUCTS INC. | | 74A410773-2001 | 13002 | GOODRICH CORPORATION | | 74A410773-2001 | 2M490 | NASSAU TOOL WORKS, INC | | 74A410773-2001 | 2U518 | BLAIR INDUSTRIES INC | | 74A410773-2001 | 35962 | SAFRAN LANDING SYSTEMS CANADA INC | | 74A410773-2001 | 3Z260 | A. J. ASSOCIATES MANUFACTURING & ENGINEERING CO. INC. | | 74A410773-2001 | 59563 | REID PRODUCTS INC. | | 740410773-2001 | 85941 | MAGELLAN AEROSPACE, NEW YORK, INC. | | 740410773-2001 | 9K006 | CIRCOR AEROSPACE, INC. | | 74A410773-2001 | 5ZSC8 | HDI LANDING GEAR USA INC | | 74A410773-2001 | 6K4C8 | GOODRICH CORPORATION | | 74A410773-2001 | 6Z056 | CM MANUFACTURING INC | | 74A410773-2001 | 76301 | THE BOEING COMPANY | | 74A410773-2001 | 85941 | MAGELLAN AEROSPACE, NEW YORK, INC. |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | AAUR | | DISTANCE FROM CENTERLINE TO FLAT | 0.250 INCHES NOMINAL | | FASTENER LENGTH | 1.220 INCHES NOMINAL | | GRIP LENGTH | 0.755 INCHES MINIMUM AND 0.765 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM | | HEAD DIAMETER | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.187 INCHES NOMINAL | | HEAD STYLE | DEE CHAMFER | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8844,CL 3,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 280000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD CLASS | 3A | | THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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