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National Stock Number:
5305-01-365-7261
Federal Supply Class:
5305
National Item Identification Number:
013657261
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:
| 03A173-3-23P | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP | | 03A173-3-23P | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | AIC1651-3-23P | 06725 | SPS TECHNOLOGIES, LLC | | BF0015HC3A-3-23 | 62384 | LFC INDUSTRIES INC. | | 03A175-3-23P | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 123742-3-23P | 80539 | SPS TECHNOLOGIES, LLC | | SC3103-3-23P | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | SLB216-3-23P | 16258 | SPACE-LOK, INC. | | PBF1416-3-23P | 27624 | SPS TECHNOLOGIES LLC | | HR239-3-23P | 73197 | HI-SHEAR CORPORATION | | E008-3-23P | 97928 | HUCK INTL INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.478 INCHES MINIMUM AND 0.488 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.128 INCHES MINIMUM AND 0.148 INCHES MAXIMUM | | HEAD DIAMETER | 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.345 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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