NSN 5305-00-021-3801
Part Details | HEXAGON HEAD CAP SCREW
5305-00-021-3801 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. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.
Alternate Parts: AMD1403 ITEM 65, AMD-1403 ITEM 65, 213801, E108186 PART NO 266, E108186 PART NO 239, E104555 FIND 75, D31088 FIND NO 53, D301087 FIND NO 80, D301080 FIND NO 53, WG107186, 60014553, 60-01-4553, FFS85TYPE2STYLE10P, 213801, 3162784, 316-2784, MS35307411, MS35307-411, NASM35307411, NASM35307-411, MS35307411, MS35307-411, 7017063818 SH 1 PC 4, 701-7063818 SH 1 PC 4, 7017063815 SH 1 PC, 701-7063815 SH 1 PC, 5017368092 ITEM NO 27, 501-7368092 ITEM NO 27, 5017368091 ITEM NO 30, 501-7368091 ITEM NO 30, 5017298327 ITEM NO 64, 501-7298327 ITEM NO 64, 145451093153, 145-4510931-53, E104555 FIND 75, D301088 FIND NO 53, PWA500476 ITEM 31, 28362, 5305-00-021-3801, 00-021-3801, 5305000213801, 000213801
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JAN 01, 1963 | 00-021-3801 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON

Cross Reference | NSN 5305-00-021-3801
Part Number | Cage Code | Manufacturer |
---|---|---|
AMD-1403 ITEM 65 | 70433 | APPLETON MARINE, INC. |
213801 | 21450 | ARMY WEAPONS COMMANDATTN AMSWE-REE-S |
E108186 PART NO 266 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
E108186 PART NO 239 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
E104555 FIND 75 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
D31088 FIND NO 53 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
D301087 FIND NO 80 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
D301080 FIND NO 53 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
WG107186 | 3X894 | CONTROL FLOW, INC.DBA WESTECH HEAVY MACHINERY DIV |
60-01-4553 | 96169 | ELECTRIC BOAT CORPORATION |
FFS85TYPE2STYLE10P | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
213801 | 24617 | GENERAL MOTORS CORP |
316-2784 | 81495 | KOEHRING CRANES INCDBA TEREX CRANES DIV WAVERLY |
MS35307-411 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
NASM35307-411 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
MS35307-411 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
701-7063818 SH 1 PC 4 | 53711 | NAVAL SEA SYSTEMS COMMAND |
701-7063815 SH 1 PC | 53711 | NAVAL SEA SYSTEMS COMMAND |
501-7368092 ITEM NO 27 | 53711 | NAVAL SEA SYSTEMS COMMAND |
501-7368091 ITEM NO 30 | 53711 | NAVAL SEA SYSTEMS COMMAND |
501-7298327 ITEM NO 64 | 53711 | NAVAL SEA SYSTEMS COMMAND |
145-4510931-53 | 51563 | ROHR, INCDBA GOODRICH AEROSTRUCTURES GROUP |
E104555 FIND 75 | 3X834 | SECURITY ARMS CO INC |
D301088 FIND NO 53 | 3X834 | SECURITY ARMS CO INC |
PWA500476 ITEM 31 | 77445 | UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS |
28362 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
Technical Data | NSN 5305-00-021-3801
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNC |
THREAD LENGTH | 1.250 INCHES MAXIMUM |
FASTENER LENGTH | 1.250 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
THREAD DIRECTION | RIGHT-HAND |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
THREAD QUANTITY PER INCH | 13 |
THREAD CLASS | 2A |
MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |