Part Details | MACHINE SCREW
5305-01-339-3298 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: R440X.312#, R/4-40X.312#, A320A628, 1170347001, 117-0347-001, NT521R0440EC5, 5305-01-339-3298, 01-339-3298, 5305013393298, 013393298
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 20, 1991 | 01-339-3298 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-339-3298
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| R/4-40X.312# | 97539 | A P M HEXSEAL CORPORATION |
| A320A628 | 88818 | KEARFOTT CORPORATIONDBA KEARFOTT |
| 117-0347-001 | 54296 | LORAL TERRACOMDIV OF LORAL CORP |
| NT521R0440EC5 | 02310 | PATTONAIR USA INCUNISEAL DIV |
Technical Data | NSN 5305-01-339-3298
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.262 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| FASTENER LENGTH | 0.312 INCHES NOMINAL |
| SCREW MATERIAL | STEEL COMP 302 |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| HEAD STYLE | 4 CROWNED HEXAGON |
| HEAD DIAMETER | 0.238 INCHES MAXIMUM |
| HEAD HEIGHT | 0.080 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| FEATURES PROVIDED | O RING |
| SPECIAL FEATURES | 0-RING FLOUROSILICONE RUBBER,COLOR BLUE |