Part Details | MACHINE SCREW
5305-00-639-3441 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: 88359491, 8835949-1, A88354491, A8835449-1, 88359491, 8835949-1, A88354491, A8835449-1, 5305-00-639-3441, 00-639-3441, 5305006393441, 006393441
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-639-3441 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-639-3441
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8835949-1 | 49671 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| A8835449-1 | 49671 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 8835949-1 | 21921 | RCA CORPDISTRIBUTOR AND SPECIAL PRODUCTS DIV |
| A8835449-1 | 21921 | RCA CORPDISTRIBUTOR AND SPECIAL PRODUCTS DIV |
Technical Data | NSN 5305-00-639-3441
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.250 INCHES NOMINAL |
| FASTENER LENGTH | 0.688 INCHES NOMINAL |
| SCREW MATERIAL | STEEL |
| HEAD STYLE | 3 DISHED HEXAGON |
| HEAD DIAMETER | 0.078 INCHES NOMINAL |
| HEAD HEIGHT | 0.188 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |