Part Details | MACHINE SCREW
5305-00-638-9086 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: ASAB1861947, ASAB18-6-1947, 990316155, 990316-155, 990316155, 990316-155, 5305-00-638-9086, 00-638-9086, 5305006389086, 006389086
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-638-9086 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-638-9086
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| ASAB18-6-1947 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
| 990316-155 | 49671 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 990316-155 | 21921 | RCA CORPDISTRIBUTOR AND SPECIAL PRODUCTS DIV |
Technical Data | NSN 5305-00-638-9086
| 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 | 0.250 INCHES MINIMUM |
| FASTENER LENGTH | 0.250 INCHES NOMINAL |
| SCREW MATERIAL | COPPER ALLOY |
| SCREW SURFACE TREATMENT | NICKEL |
| 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 |