Part Details | MACHINE SCREW
5305-00-637-6395 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: AN525416R16, AN525-416R16, MILS7839, MILS7839, AN525416R16, AN525-416R16, 5305-00-637-6395, 00-637-6395, 5305006376395, 006376395
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-637-6395 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-637-6395
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| AN525-416R16 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
| MILS7839 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MILS7839 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
| AN525-416R16 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-00-637-6395
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.335 INCHES MINIMUM |
| FASTENER LENGTH | 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL COMP 2330 |
| SCREW SURFACE TREATMENT | CADMIUM AND ZINC |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BAN-P-61 /CANCELED/$CAN-P-32 /CANCELED/ 1ST TREATMENT RESPONSE |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.437 INCHES NOMINAL |
| HEAD HEIGHT | 0.101 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.500 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |