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National Stock Number:
5305-00-215-6373
Federal Supply Class:
5305
National Item Identification Number:
002156373
Description:
SCREW,MACHINE
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
| 2329524-56 | 18355 | THE BOEING COMPANY | | 2329524-56 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 3.359 INCHES MINIMUM AND 3.391 INCHES MAXIMUM | | HEAD DIAMETER | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM | | HEAD HEIGHT | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM | | HEAD STYLE | BUTTON | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-500 FED STD 1ST MATERIAL RESPONSE OR MIL-S-6049 FED STD 2ND MATERIAL RESPONSE OR MIL-S-8503 FED STD 3RD MATERIAL RESPONSE OR MIL-S-6758 FED STD 4TH MATERIAL RESPONSE | | SCREW MATERIAL | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OR STEEL COMP 4130 | | SCREW SURFACE TREATMENT | CADMIUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.297 INCHES MINIMUM AND 0.359 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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