5305-01-323-1138, SCREW,CAP,SOCKET HEAD

5306-01-323-1139 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-323-1138

Federal Supply Class:
5305

National Item Identification Number:
013231138

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:

0.190-24UNC-3A X 0.750 IN LG	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

FASTENER LENGTH	0.750 INCHES NOMINAL
HEAD DIAMETER	0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT	0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PELLET OR PATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	NICKEL ALLOY 400 FASTENER
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	40000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
NONDEFINITIVE SPEC/STD DATA	6 TYPE
SPECIAL FEATURES	THE MRC AAUM IS PER MIL-S-18240 TYPE N
WIDTH ACROSS FLATS	0.156 INCHES NOMINAL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.687 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	24

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