5306-99-333-7568, BOLT,MACHINE

National Stock Number:
5306-99-333-7568

Federal Supply Class:
5306

National Item Identification Number:
993337568

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

AS48812	0U583	SAE INTERNATIONAL
AS48812	U0583	THORN E M I PANELGRAPHIC LTD
AS48812	U10H8	ADS GROUP LIMITED
AS48812	U14C6	SAE ITC ENGINE & AIRFRAME TECHNICALSTANDARDS
AS48812	U1653	SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC
AS48812	U5897	ADVANCED LOGISTICS FOR AEROSPACE (UK) LIMITED

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	FEAT
EXTENDED WASHER THICKNESS	1.52 MILLIMETERS MINIMUM
EXTENDED WASHER DIAMETER	11.38 MILLIMETERS MAXIMUM AND 10.88 MILLIMETERS MINIMUM
FASTENER LENGTH	18.75 MILLIMETERS MINIMUM AND 19.25 MILLIMETERS MAXIMUM
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	7.95 MILLIMETERS MAXIMUM AND 7.45 MILLIMETERS MINIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	DTD 5639 GOVERNMENT STD/SPEC SINGLE MATERIAL RESPONSE OR EN 2959 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR EN 3220 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	NICKEL ALLOY OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	SCREW,MACHINE
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIAL FEATURES	FLIGHT SAFETY CRITICAL
WIDTH BETWEEN FLATS	8.19 MILLIMETERS MAXIMUM AND 7.69 MILLIMETERS MINIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	18.75 MILLIMETERS MINIMUM AND 19.25 MILLIMETERS MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNJF

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