Part Details | MACHINE SCREW
5305-01-079-2956 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: 12274395, 12274395, 5305-01-079-2956, 01-079-2956, 5305010792956, 010792956
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUL 01, 1979 | 01-079-2956 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-079-2956
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 12274395 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
| 12274395 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 5305-01-079-2956
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.790 INCHES NOMINAL |
| FASTENER LENGTH | 4.000 INCHES NOMINAL |
| SCREW MATERIAL | 0$DST8630 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AASTM A322$AASTM A331 ALL MATERIAL RESPONSES |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |
| END ITEM IDENTIFICATION | TANK,FULL TRACKED,XM1;TANK,FULL TRACKED,M1W/IMPROVED ARMOR;TANK,FULL TRACKED,M1A1 |