Part Details | MACHINE SCREW
5305-00-256-7475 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.
Alternate Parts: P3421856000, P342-1856-000, FFS92, 90438618, 904386-18, 74455228120, MS5195918B, MS51959-18B, MS5195918B, MS51959-18B, 3421856000, 342-1856-000, 5305-00-256-7475, 00-256-7475, 5305002567475, 002567475
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 26, 1971 | 00-256-7475 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-256-7475
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| P342-1856-000 | 77250 | ALLIED PRODUCTS CORP PHEOLL MFG CODIV |
| FFS92 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| 904386-18 | 05257 | GENERAL DYNAMICS LAND SYSTEMS-CANADA CORPORATION |
| 74455228120 | 89944 | KOLLSMAN, INC. |
| MS51959-18B | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| MS51959-18B | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
| 342-1856-000 | 13499 | ROCKWELL COLLINS, INC.DBA GOVERNMENT SYSTEMS |
Technical Data | NSN 5305-00-256-7475
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.477 INCHES MINIMUM AND 0.558 INCHES MAXIMUM |
| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| SCREW MATERIAL | 0$DSTA000 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BQQ-S-763,300 SERIES$JCB66,300 SERIES$JGCCOMP 16-18 OR 18-8 1ST MATERIAL RESPONSE |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 2C STYLE |
| END ITEM IDENTIFICATION | AIRCRAFT, T-39; AUSTIN SHIP CLASS LPD-4 AMPHIBIOUS TRANSPORT DOCKS; TICONDEROGA CLASS CG (47); HELICOPTER, SEARCH AND RESCUE, HH-60H; HELICOPTER, MH-53E; HELICOPTER, USCG SEARCH AND RESCUE, HH-60J; AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); HELICOPTER, ADVANCE ATTACK, AH-1W; MISSILE, AIR--TO-AIR, SPARROW (AIM-7); HELICOPTER, CARRIER BASED ASW, SH-60F |