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National Stock Number:
5305-01-607-0621
Federal Supply Class:
5305
National Item Identification Number:
016070621
Description:
SCREW,ASSEMBLED WASHER
Detail:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
| 90401A827 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.381 INCHES NOMINAL | | EXTENDED WASHER THICKNESS | 0.024 INCHES NOMINAL | | FASTENER LENGTH | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.120 INCHES NOMINAL | | HEAD STYLE | HEXAGON EXTENDED WASHER | | INTERNAL DRIVE STYLE | TRI-WING RECESS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEMS SCREW | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | PRIMARY WASHER MATERIAL THICKNESS | 0.024 INCHES NOMINAL | | PRIMARY WASHER OUTSIDE DIAMETER | 0.381 INCHES NOMINAL | | PRIMARY WASHER STYLE | FLAT INTERNAL TEETH | | SURFACE TREATMENT | ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.375 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNF | | WASHER QUANTITY | 1 | | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
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