Product Details | MACHINE SCREW

5306-01-557-0509 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Part Alternates: 015570509

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01-557-0509

Drawings & Photos | NSN 5305-01-557-0509


Demand History | NSN 5306-01-557-0509

Part Number Request Date QTY Origin
5305-01-557-0509 2008-08-219 151 DIBBS

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Technical Data | NSN 5306-01-557-0509

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.500 INCHES
THREAD QUANTITY PER INCH 20
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.250 INCHES NOMINAL
FASTENER LENGTH 4.400 INCHES MINIMUM AND 4.500 INCHES MAXIMUM
SCREW MATERIAL STEEL
HEAD STYLE A1 HEXAGON
HEAD HEIGHT 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
SPECIAL FEATURES 1/2"-20 X 4-1/2" GRADE 5 ZINC PLATED HEX CAP SCREW

Restrictions/Controls & Freight Information | NSN 5306-01-557-0509

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
Controlled Inventory Item Code:UUNCLASSIFIED
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Category Code Description
No Freight Information