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National Stock Number:
5305-00-434-9836
Federal Supply Class:
5305
National Item Identification Number:
004349836
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:
| GB510M8A16 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | SFH26-8A16 | 56878 | SPS TECHNOLOGIES, LLC | | SFH26-8A16 | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| FASTENER LENGTH | 1.545 INCHES MINIMUM AND 1.592 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107,STANDARD PRESSED STEEL CO MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH | | SPECIFICATION/STANDARD DATA | 26512-GB510M MANUFACTURERS STANDARD | | THREAD CLASS | 3A | | THREAD LENGTH | 0.535 INCHES MINIMUM AND 0.602 INCHES MAXIMUM |
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