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National Stock Number:
5305-01-372-9435
Federal Supply Class:
5305
National Item Identification Number:
013729435
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:
| 6381659 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BEARING SURFACE OF HEAD SURFACE FINISH | 63.0 MICROINCHES | | FASTENER LENGTH | 0.520 INCHES NOMINAL | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD DIAMETER | 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | HEAD STYLE | OVAL | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 COND H1150 ASSN STD SINGLE MATERIAL RESPONSE | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM A380-1978 ASSN STD SINGLE TREATMENT RESPONSE | | SCREW MATERIAL | STEEL COMP 630 | | SCREW SURFACE TREATMENT | PASSIVATE | | SHANK SURFACE FINISH | 63.0 MICROINCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.270 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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