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National Stock Number:
5305-01-528-2701
Federal Supply Class:
5305
National Item Identification Number:
015282701
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:
| BACB30VF | 81205 | THE BOEING COMPANY | | BACB30VF4K6 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30VF4K6 | 17446 | HUCK INTERNATIONAL, INC | | BACB30VF4K6 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30VF4K6 | 1UX99 | MOLEX, LLC | | BACB30VF4K6 | 73197 | HI-SHEAR CORPORATION | | BACB30VF4K6 | 81205 | THE BOEING COMPANY | | BACB30VF4K6 | Z03F0 | BOEING DEFENCE AUSTRALIA LTD | | BACB30VF4K6 | Z8T75 | BOEING DEFENCE AUSTRALIA LTD |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.735 INCHES MINIMUM AND 0.755 INCHES MAXIMUM | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM | | HEAD DIAMETER | 0.364 INCHES MINIMUM AND 0.397 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEG REDUCED HEAD, CROSS RECESS | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 3300 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS10-85 TYPE 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.700 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF |
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