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National Stock Number:
5305-01-193-9698
Federal Supply Class:
5305
National Item Identification Number:
011939698
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:
| 123WM10111-613 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 123WM10111-613 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | FASTENER LENGTH | 0.897 INCHES MINIMUM AND 0.927 INCHES MAXIMUM | | HEAD HEIGHT | 0.057 INCHES MINIMUM AND 0.059 INCHES MAXIMUM | | HEAD DIAMETER | 0.531 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | SLOT | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SCREW MATERIAL | STEEL | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE | | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE | | SPECIAL FEATURES | CONCENTRIC HOLE IN HEAD 0.1596 IN. MIN DIA,0.1675 IN. MAX DIA 0.190 IN. THD DIA,32 THREADS PER IN. JF CLASS 3B,COUNTERSUNK 90 DEGREES,0.156 IN. MIN DIA,0.187 IN. MAX DIA; 0.310 IN. MIN LENGTH,0.507 IN. LENGTH | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.312 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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