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National Stock Number:
5305-00-207-8841
Federal Supply Class:
5305
National Item Identification Number:
002078841
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:
| 1169103 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 7771607 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| COUNTERSINK ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.840 INCHES MINIMUM AND 0.860 INCHES MAXIMUM | | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HEAD DIAMETER | 0.380 INCHES MINIMUM AND 0.386 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SCREW MATERIAL | STEEL COMP 4140 | | SCREW SURFACE TREATMENT | PHOSPHATE | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE | | SHANK SURFACE FINISH | 63.0 MICROINCHES | | THREAD CLASS | 2A | | THREAD LENGTH | 0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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