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National Stock Number: 5305-01-484-5403
Federal Supply Class: 5305
National Item Identification Number: 014845403
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:
74D295019 | 76301 | THE BOEING COMPANY | 74D295019-2035 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
COUNTERSINK ANGLE | 0.990 DEGREES MINIMUM AND 1.000 DEGREES MAXIMUM | FASTENER LENGTH | 1.813 INCHES MINIMUM AND 1.875 INCHES MAXIMUM | HEAD DIAMETER | 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM | HEAD STYLE | FLAT COUNTERSUNK | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | NOMINAL THREAD DIAMETER | 0.250 INCHES | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE | SCREW MATERIAL | STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 8740 | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE | SCREW SURFACE TREATMENT | CADMIUM | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.370 INCHES NOMINAL | THREAD SERIES DESIGNATOR | UNJF | THREAD QUANTITY PER INCH | 28 |
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