NSN 5305-00-156-2521
Part Details | MACHINE SCREW
5305-00-156-2521 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: AN515B41624, AN515B416-24, A1132046, A11320-46, FFS92ANDTYPE1ANDSTYLE1S, A1132046, A11320-46, 5305-00-156-2521, 00-156-2521, 5305001562521, 001562521
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-156-2521 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-156-2521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| AN515B416-24 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
| A11320-46 | 06840 | BENDIX CORP THE |
| FFS92ANDTYPE1ANDSTYLE1S | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| A11320-46 | 06845 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-00-156-2521
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES MAXIMUM |
| FASTENER LENGTH | 1.500 INCHES NOMINAL |
| SCREW MATERIAL | COPPER ALLOY |
| SCREW SURFACE TREATMENT | OXIDE |
| HEAD STYLE | 8 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.433 INCHES MINIMUM AND 0.472 INCHES MAXIMUM |
| HEAD HEIGHT | 0.175 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1S STYLE AND AN515B416-24 PART |
