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National Stock Number:
5305-00-151-0027
Federal Supply Class:
5305
National Item Identification Number:
001510027
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:
| AN507 | 01170 | BELLOFRAM CORPORATION | | AN507 | 38508 | DESCO CORP MARSH BELLOFRAM DIV | | AN507H518R24 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | FFS92TYPE3STYLE3C | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MATERIAL AND METALLIC HARDNESS RATING AND TENSILE STRENGTH AND FASTENER LENGTH | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HEAD DIAMETER | 0.556 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 3C STYLE | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL COMP 2330 | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES | | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.389 INCHES MINIMUM AND 1.500 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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