5305-01-374-9820, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-374-9820

Federal Supply Class:
5305

National Item Identification Number:
013749820

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Manufacturer Information:

12387270-83

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

COLOR	BRONZE OR OLIVE DRAB OVERALL
FASTENER LENGTH	1.710 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
HEAD HEIGHT	0.3060 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM
HEAD DIAMETER	0.4570 INCHES MINIMUM AND 0.4688 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL UNS K03104 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SPECIAL FEATURES	SURFACE TREATMENT 0.0003 IN. THICK,CHROMATE TREATMENT: BRONZE OR OLIVE DRAB
WIDTH ACROSS FLATS	0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 TY 2 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	1.403 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	18

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