Product Details | SQUARE NECK BOLT

5306-00-248-8683 A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part Alternates: FFB548, 5306-00-248-8683, 00-248-8683, 5306002488683, 002488683

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-248-8683

Cross Reference | NSN 5306-00-248-8683

Part Number Cage Code Manufacturer
FFB548 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5306-00-248-8683

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.500 INCHES
THREAD QUANTITY PER INCH 13
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.500 INCHES MINIMUM
FASTENER LENGTH 7.000 INCHES NOMINAL
MATERIAL STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT CHROMATE ZINC OVERALL
HARDNESS RATING 95.5 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH 55000 POUNDS PER SQUARE INCH
HEAD STYLE B30 BUTTON
HEAD DIAMETER 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM
HEAD HEIGHT 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
NECK LENGTH 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
NECK WIDTH 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 1 CLASS AND A STYLE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB548

Restrictions/Controls & Freight Information | NSN 5306-00-248-8683

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