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National Stock Number:
5305-01-517-4331
Federal Supply Class:
5305
National Item Identification Number:
015174331
Description:
SCREW,CLOSE TOLERANCE
Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| 123178E04T-0004 | 80539 | SPS TECHNOLOGIES, LLC | | AIC4037E04-0004 | 06725 | SPS TECHNOLOGIES, LLC | | LE111-0024 | 43999 | THE BOEING COMPANY | | LE111-0024-0004 | 43999 | THE BOEING COMPANY | | FIT111-0024-0004 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | LE111-0024-0004 | 89193 | UNITED AIRCRAFT PRODUCTS INC | | SC2176TE04-0004 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | PBF1376-0004 | 27624 | SPS TECHNOLOGIES LLC | | SII-1085-0004 | 57928 | SONIC INDUSTRIES, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJC | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | THREAD QUANTITY PER INCH | 40 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.232 INCHES NOMINAL | | FASTENER LENGTH | 0.468 INCHES MINIMUM AND | | 0.498 INCHES MAXIMUM | | MATERIAL | IRON ALLOY 660 OVERALL | | HEAD STYLE | PAN NO. 2 | | HEAD DIAMETER | 0.205 INCHES MINIMUM AND | | 0.219 INCHES MAXIMUM | | HEAD HEIGHT | 0.070 INCHES MINIMUM AND | | 0.080 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | GRIP LENGTH | 0.240 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | GRIP DIAMETER | 0.1095 INCHES MINIMUM AND | | 0.1115 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW |
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