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National Stock Number:
5305-01-449-8836
Federal Supply Class:
5305
National Item Identification Number:
014498836
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 1 1/4-7UNC-2A X 3 LG | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | 1 1/4-7UNC2A X 3 LG | 53711 | NAVAL SEA SYSTEMS COMMAND | | 122-5008264 P/N 27 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 122-5008264 PC 27 | 53711 | NAVAL SEA SYSTEMS COMMAND | | FF-S-86 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 1.250 INCHES | | THREAD QUANTITY PER INCH | 7 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 3.000 INCHES MAXIMUM | | FASTENER LENGTH | 2.860 INCHES MINIMUM AND | | 3.000 INCHES MAXIMUM | | MATERIAL | STEEL UNS K03104 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 37.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 1.852 INCHES MINIMUM AND | | 1.875 INCHES MAXIMUM | | HEAD HEIGHT | 1.236 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |
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