5306-01-297-7525, BOLT,MACHINE

National Stock Number:
5306-01-297-7525

Federal Supply Class:
5306

National Item Identification Number:
012977525

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:

BACB30ST7-39	16258	SPACE-LOK, INC.
BACB30ST7-39	56878	SPS TECHNOLOGIES, LLC
BACB30ST7-39	77272	THE BOEING COMPANY
BACB30ST7-39	80539	SPS TECHNOLOGIES, LLC
BACB30ST7-39	81205	THE BOEING COMPANY
BACB30ST7-39	84256	AVIBANK MFG., INC.
BACB30ST7-39	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.759 INCHES MINIMUM AND 2.819 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	3.301 INCHES MINIMUM AND 3.331 INCHES MAXIMUM
FEATURES PROVIDED	DRY FILM LUBRICANT
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM STAND-OFF
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM FASTENER
HARDNESS RATING	48.0 ROCKWELL C MINIMUM SPRING
HEAD HEIGHT	0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
HEAD STYLE	DISHED HEXAGON
LOCKING FEATURE	RETAINER THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE SPRING
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 5TH MATERIAL RESPONSE FASTENER
MATERIAL	STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 FASTENER
MATERIAL	STEEL COMP 630 STAND-OFF
MATERIAL	STEEL COMP 631 SPRING
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
SPECIAL FEATURES	ALSO FURNISHED WITH PIN AND PLUGS; 303 CRES; PASSIVATE PER QQ-P-35
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS	0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM AND CHROMATE FASTENER
SURFACE TREATMENT	PASSIVATE SPRING
SURFACE TREATMENT	PASSIVATE STAND-OFF
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.853 INCHES MINIMUM AND 0.903 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	20

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