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5306-00-005-0549

5306-00-005-0549

Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Length: 1.726-1.746", thread: 3/8-24, dished hex head

NSN: 5306-00-005-0549
Federal Supply Group: Hardware and Abrasives
Federal Supply Classification: 5306 -Bolts
Item Identification Number: 00-005-0549
Requires Demilitarization?: Yes
INC: 27851
Assigment Date: Wed, Jun 7, 1972
Schedule B Code: 7318152000
THREAD CLASS: 3a
THREAD DIRECTION: Right-hand
THREAD LENGTH: 0.356 inches minimum and 0.438 inches maximum
FASTENER LENGTH: 1.726 inches minimum and 1.746 inches maximum
HEAD STYLE: Dished hexagon
HEAD HEIGHT: 0.189 inches minimum and 0.204 inches maximum
WIDTH BETWEEN FLATS: 0.553 inches minimum and 0.564 inches maximum
GRIP DIAMETER: 0.3733 inches minimum and 0.3742 inches maximum
SHANK UNTHREADED HOLE DIAMETER: 0.106 inches minimum first hole and 0.116 inches maximum first hole
NOMINAL THREAD DIAMETER: 0.375 inches
GRIP LENGTH: 1.188 inches minimum and 1.204 inches maximum
THREAD QUANTITY PER INCH: 24
HARDNESS RATING: 36 rockwell c minimum overall and 41 rockwell c maximum overall
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 1.611 inches minimum first hole and 1.641 inches maximum first hole
SURFACE FINISH: 63 microinches surface of head
SPECIAL FEATURES: With retaining element on shank
MATERIAL: Steel
MATERIAL DOCUMENT AND CLASSIFICATION: Mil-b-83050 mil spec single material response overall
SURFACE TREATMENT: Cadmium and chromate
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: Qq-p-416 ty 2 cl 2 fed spec all treatment responses overall
THREAD SERIES DESIGNATOR: Unjf

Frequently Asked Questions

What is the FSCG of the NSN 5306-00-005-0549?: The FSCG of the NSN 5306-00-005-0549 is 5306

Does the NSN 5306-00-005-0549 have a Schedule B code assigned?: Yes, the Schedule B code is 7318152000

Does NSN 5306-00-005-0549 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5306-00-005-0549 contain precious materials?: Precious metal content is unknown

Does NSN 5306-00-005-0549 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.