Product Details | SQUARE NECK BOLT

5306-00-260-7473 A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part Alternates: MILB857, 5306-00-260-7473, 00-260-7473, 5306002607473, 002607473

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-260-7473

Cross Reference | NSN 5306-00-260-7473

Part Number Cage Code Manufacturer
MILB857 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5306-00-260-7473

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.312 INCHES
THREAD QUANTITY PER INCH 18
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.000 INCHES MINIMUM
FASTENER LENGTH 4.500 INCHES NOMINAL
MATERIAL STEEL OVERALL
HEAD STYLE B30 BUTTON
HEAD DIAMETER 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM
HEAD HEIGHT 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM
NECK LENGTH 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
NECK WIDTH 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM
SPECIAL FEATURES FURNISHED W/SQ NUT
NONDEFINITIVE SPEC/STD DATA V TYPE AND 1 GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILB857

Restrictions/Controls & Freight Information | NSN 5306-00-260-7473

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information