Part Details | SOCKET HEAD CAP SCREW
5305-01-337-3257 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
Alternate Parts: 0.31218UNC X 0.875NICU, 0.312-18UNC X 0.875-NICU, FFS86, FF-S-86, 8454788683 SHEET 100, 845-4788683 SHEET 100, 695049, FFS86 TY6,.31 218UNC3AX.875, FF-S-86 TY6,.31 2-18UNC-3AX.875, 5305-01-337-3257, 01-337-3257, 5305013373257, 013373257
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | APR 12, 1991 | 01-337-3257 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-337-3257
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 0.312-18UNC X 0.875-NICU | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| FF-S-86 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| 845-4788683 SHEET 100 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 695049 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
| FF-S-86 TY6,.31 2-18UNC-3AX.875 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
Technical Data | NSN 5305-01-337-3257
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.764 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| FASTENER LENGTH | 0.875 INCHES NOMINAL |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 CROWNED HEXAGON |
| HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL |