NSN 5306-00-576-0385

Part Details | MACHINE BOLT

5306-00-576-0385 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.

Alternate Parts: MILB6812A, MIL-B-6812A, MILB6812A, MIL-B-6812A, NM138AS428S8C, NK43, NK4-3, M38AS4288C, M38AS428-8C, 5306-00-576-0385, 00-576-0385, 5306005760385, 005760385

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196000-576-038501847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-576-0385
Part Number Cage Code Manufacturer
MIL-B-6812A81349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
MIL-B-6812A80205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
NM138AS428S8C26233NYLOK CORPORATIONDBA NYLOK WESTERN FASTENER
NK4-326233NYLOK CORPORATIONDBA NYLOK WESTERN FASTENER
M38AS428-8C14438NYLOK FASTENER CORPORATIONDBA NYLOK CHICAGO
Technical Data | NSN 5306-00-576-0385
Characteristic Specifications
HEAD STYLE HEXAGON
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.374 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
FASTENER LENGTH0.453 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
GRIP LENGTH0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD