Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-255-3059 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.
Alternate Parts: 63B301558P2, 5305-01-255-3059, 01-255-3059, 5305012553059, 012553059
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 18, 1987 | 01-255-3059 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5305-01-255-3059
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 63B301558P2 | 16331 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
Technical Data | NSN 5305-01-255-3059
| Characteristic | Specifications |
|---|---|
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.180 INCHES MINIMUM |
| FASTENER LENGTH | 0.544 INCHES MINIMUM AND 0.575 INCHES MAXIMUM |
| HEAD HEIGHT | 0.060 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| FIRST DIAMETER FROM HEAD | 0.122 INCHES MINIMUM AND 0.124 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |