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National Stock Number:
5305-01-606-7271
Federal Supply Class:
5305
National Item Identification Number:
016067271
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:
| 8350554 ITEM 274 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 91205A563 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL | | FASTENER LENGTH | 0.750 INCHES NOMINAL | | MATERIAL | STEEL FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | OXIDE FASTENER | | COLOR | BLACK FASTENER | | HARDNESS RATING | 39.0 ROCKWELL C NOMINAL FASTENER | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.244 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | SPECIAL FEATURES | NYLON LOCKING PATCH BONDED TO THE THREADS |
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