3120-00-225-5821 BUSHING,SLEEVE Index 1560-00-225-5823 COVER ASSEMBLY,DUCT

National Stock Number:
5306-00-225-5822

Federal Supply Class:
5306

National Item Identification Number:
002255822

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.


Manufacturer Information:
3G11561-10398897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM CENTERLINE TO FLAT0.475 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.450 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DIAMETER0.375 INCHES NOMINAL
FASTENER LENGTH2.650 INCHES NOMINAL
HEAD DIAMETER1.200 INCHES NOMINAL
HEAD HEIGHT0.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
SHANK UNTHREADED HOLE DIAMETER0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM FIRST HOLE
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.600 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH16


Click here to Register for Free 30-day Trial

© 2026 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us