5306-01-252-8051, BOLT,SHOULDER

National Stock Number:
5306-01-252-8051

Federal Supply Class:
5306

National Item Identification Number:
012528051

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.

Manufacturer Information:

123CM41009	0BVP9	CAPY MACHINE SHOP INC.
123CM41009	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
123CM41009	59U82	NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
123CM41009	61174	NORTHROP GRUMMAN SYSTEMS CORPORATION
123CM41009	65762	AIRLIFT PECONIC INC DIV OF AIR MARINE ELECTRO PLATING
123CM41009	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION
123CM41009-611	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
123CM41009-611	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.296 INCHES MINIMUM AND
	0.328 INCHES MAXIMUM
FASTENER LENGTH	2.281 INCHES NOMINAL
MATERIAL	STEEL COMP 1095 OR
	STEEL COMP 4130 OR
	STEEL COMP 4140 OR
	STEEL COMP 4340 OR
	STEEL COMP 6150 OR
	STEEL COMP 8740 OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND
	42.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.500 INCHES NOMINAL
SHOULDER SHAPE	ROUND FIRST SHOULDER
SHOULDER DIAMETER	0.3104 INCHES MINIMUM AND
	0.3110 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	1.218 INCHES NOMINAL FIRST SHOULDER
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.165 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.077 INCHES MINIMUM AND
	0.082 INCHES MAXIMUM FIRST HOLE

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