Part Details | MACHINE SCREW
5305-00-439-2638 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: SR1032BC07, 1014551, 101455-1, NT352R1032A7, 5305-00-439-2638, 00-439-2638, 5305004392638, 004392638
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 05, 1969 | 00-439-2638 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-439-2638
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SR1032BC07 | 97539 | A P M HEXSEAL CORPORATION |
| 101455-1 | 77646 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDBA AEROSPACE SYSTEMS SECTOR |
| NT352R1032A7 | 02310 | PATTONAIR USA INCUNISEAL DIV |
Technical Data | NSN 5305-00-439-2638
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.423 INCHES MINIMUM AND 0.468 INCHES MAXIMUM |
| FASTENER LENGTH | 0.423 INCHES MINIMUM AND 0.468 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL COMP 1010 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | 0$DZNA000 |
| HEAD STYLE | 4 CROWNED HEXAGON |
| HEAD DIAMETER | 0.387 INCHES MINIMUM AND 0.407 INCHES MAXIMUM |
| HEAD HEIGHT | 0.119 INCHES MINIMUM AND 0.139 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| FEATURES PROVIDED | O RING |