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National Stock Number:
5305-01-309-1519
Federal Supply Class:
5305
National Item Identification Number:
013091519
Description:
SETSCREW
Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| 0.250-20 UNC 3A 0.250 IN. LG | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | 0.250-20UNC-3A 0.250 LG | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | 801-6405354 FIN | 53711 | NAVAL SEA SYSTEMS COMMAND | | FF-S-200 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | FF-S-200 TYPE II STYLE 1 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.250 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY R-405 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | HEADLESS (SETSCREW) | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | POINT STYLE | FLAT | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND | | 1 STYLE | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-200 TYPE II STYLE 1 |
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