Part Details | MACHINE SCREW
5305-01-273-4503 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: 878779226, 878779-226, 878779226, 878779-226, 878779226, 878779-226, 878779226, 878779-226, 878779226, 878779-226, 5305-01-273-4503, 01-273-4503, 5305012734503, 012734503
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | FEB 25, 1988 | 01-273-4503 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-273-4503
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 878779-226 | 06424 | ALLIANT TECHSYSTEMS OPERATIONS LLCDIV DEFENSE ELECTRONIC SYSTEMS |
| 878779-226 | 70318 | ALLMETAL SCREW PRODUCTS CORP.DBA ALL METAL SCREW PRODUCTS |
| 878779-226 | 02751 | BLACK ANAD WEBSTER INCNYLOGRIP PRODUCTS DIV |
| 878779-226 | 76301 | BOEING COMPANY, THEDBA BOEING |
| 878779-226 | 56232 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
Technical Data | NSN 5305-01-273-4503
| 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 | 0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SCREW MATERIAL | PLASTIC POLYAMIDE |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-20693 TY1 MIL SPEC SINGLE MATERIAL RESPONSE |
| HEAD STYLE | 0 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| HEAD HEIGHT | 0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |