Product Details | SQUARE NECK BOLT

5306-00-012-6638 A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part Alternates: FFB584, 5306-00-012-6638, 00-012-6638, 5306000126638, 000126638

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-012-6638

Demand History | NSN 5306-00-012-6638

Part Number Request Date QTY Origin
FFB584 2012-12-341 1600 United States
FFB584 2011-11-327 1600 United States

Cross Reference | NSN 5306-00-012-6638

Part Number Cage Code Manufacturer
FFB584 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5306-00-012-6638

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.750 INCHES MINIMUM
FASTENER LENGTH 4.000 INCHES NOMINAL
SURFACE TREATMENT CADMIUM OR ZINC OVERALL
HEAD STYLE B30 BUTTON
HEAD DIAMETER 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM
HEAD HEIGHT 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
NECK LENGTH 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
NECK WIDTH 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA I TYPE AND 1 CLASS AND A STYLE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB584

Restrictions/Controls & Freight Information | NSN 5306-00-012-6638

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