5306-00-094-5278, BOLT,SHOULDER

5307-00-094-5281 STUD,SHOULDERED AND STEPPED

National Stock Number:
5306-00-094-5278

Federal Supply Class:
5306

National Item Identification Number:
000945278

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:

442625

98897

LOCKHEED MARTIN CORP

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.090 INCHES NOMINAL FIRST HOLE
DISTANCE FROM CENTERLINE TO FLAT	0.476 INCHES MINIMUM AND 0.480 INCHES MAXIMUM
FASTENER LENGTH	2.250 INCHES NOMINAL
HEAD DIAMETER	1.250 INCHES NOMINAL
HEAD HEIGHT	0.250 INCHES NOMINAL
HEAD STYLE	DEE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6049,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.625 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER	0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	1.565 INCHES NOMINAL FIRST SHOULDER
SHOULDER SHAPE	ROUND FIRST SHOULDER
SURFACE TREATMENT	CHROMIUM GRIP
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.495 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	18

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