NSN 5305-00-051-4071
Part Details | HEXAGON HEAD CAP SCREW
5305-00-051-4071 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: B1821BH031F050N, 175105, 175-105, FFS85, FF-S-85, MS9072729, MS90727-29, 5305-00-051-4071, 00-051-4071, 5305000514071, 000514071
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JAN 01, 1960 | 00-051-4071 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON

Cross Reference | NSN 5305-00-051-4071
Part Number | Cage Code | Manufacturer |
---|---|---|
B1821BH031F050N | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
175-105 | 72741 | DORMAN PRODUCTS, INC.DBA MOTORMITE DIVISION |
FF-S-85 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
MS90727-29 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
Technical Data | NSN 5305-00-051-4071
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
THREAD LENGTH | 0.500 INCHES MINIMUM |
FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
HEAD STYLE | DISHED HEXAGON |
THREAD DIRECTION | RIGHT-HAND |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 2A |
MINIMUM TENSILE STRENGTH | 8700 POUNDS PER SQUARE INCH |
HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 4.890 INCHES MINIMUM AND 5.000 INCHES MAXIMUM |
NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE AND 8 GRADE |