5305-01-318-2353, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-318-2353

Federal Supply Class:
5305

National Item Identification Number:
013182353

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:

5/8-11UNC-3A X 1 3/4 TYVICLASL	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
5/8-11UNC-3A X 1 3/4 TYVICLASLL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
FF-S-86 QQ-N-281 GR400L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
FF-S-86L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
FF-S-86	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
FF-S-86 QQ-N-281 GR400	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.625 INCHES
THREAD QUANTITY PER INCH	11
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.750 INCHES NOMINAL
FASTENER LENGTH	1.750 INCHES NOMINAL
MATERIAL	NICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281,CL A,GR 400 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.616 INCHES MINIMUM AND
	0.625 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.921 INCHES MINIMUM AND
	0.938 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.500 INCHES NOMINAL
SPECIAL FEATURES	SELF LOCKING FASTENER PER MIL-F-18240 SUPPLIED
NONDEFINITIVE SPEC/STD DATA	VI TYPE
DEPARTURE FROM CITED DESIGNATOR	MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSOR LEVEL 1 ITEMS
CRITICALITY CODE JUSTIFICATION	ZZZX
SPEC/STD CONTROLLING DATA
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-86 QQ-N-281 GR400
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	5/8-11UNC-3A X 1 3/4 TYVICLASL

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