Part Details | HEXAGON HEAD CAP SCREW
5305-01-293-0981 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: 5343973 PIECE 16, MILS1222 TY1, MIL-S-1222 TY1, 5343973 PIECE 16, MILB857TY3 0. 2520UNC2AX0.75, MIL-B-857TY3 0. 25-20UNC2AX0.75, 5305-01-293-0981, 01-293-0981, 5305012930981, 012930981
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 26, 1989 | 01-293-0981 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-01-293-0981
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5343973 PIECE 16 | 43689 | HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS |
| MIL-S-1222 TY1 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 5343973 PIECE 16 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| MIL-B-857TY3 0. 25-20UNC2AX0.75 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
Technical Data | NSN 5305-01-293-0981
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 0.619 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE |