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National Stock Number:
5305-00-588-6960
Federal Supply Class:
5305
National Item Identification Number:
005886960
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 595473 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | FF-S-85C | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | FFS85AMEND2TYPE2STYLE10PGRADE2 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THD SERIES | | FASTENER LENGTH | 4.500 INCHES NOMINAL | | HARDNESS RATING | 95.0 ROCKWELL B MINIMUM OVERALL | | HEAD HEIGHT | 0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 1.000 INCHES | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE | | WIDTH BETWEEN FLATS | 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM | | SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.250 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNS | | THREAD QUANTITY PER INCH | 14 |
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