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National Stock Number:
5305-01-555-5525
Federal Supply Class:
5305
National Item Identification Number:
015555525
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:
| 3571976 | 45152 | OSHKOSH CORP | | 3571976 | 75Q65 | OSHKOSH DEFENSE LLC |
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Techincal Specification:
| FASTENER LENGTH | 3.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | GRADE 8 SAE J429 1/1/99 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCR, FLG, HEX .31-18X3.25 G8 DA | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SPECIAL FEATURES | WIDTH ACROSS HEX FLATS IS MIN 0.489 INCHES AND MAX IS 0.500 INCHES;FINISH IS D20, TYPE 1, GRADE 2, CLASS B PER FM100;WASHER OVERALL DIA IS 0.680 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | D20 TYPE 1 GRADE 2 CLASS B PER F-100 FED STD SINGLE TREATMENT RESPONSE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.875 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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