5950-00-620-2911 TRANSFORMER,POWER AUTOTRANSFORME Index 5305-00-620-2914 SCREW,MACHINE

National Stock Number:
5306-00-620-2912

Federal Supply Class:
5306

National Item Identification Number:
006202912

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:
NK4-6A26233NYLOK LLC
NK4-6A94417VIVE NUGIER HYDRAULICS INC


Techincal Specification:
FASTENER LENGTH0.765 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREPELLET THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE FASTENER
MATERIALPLASTIC POLYAMIDE (NYLON) LOCKING FEATURE
MATERIALSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 FASTENER
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTCADMIUM AND CHROMATE FASTENER
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.437 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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