Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-291-0138 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: 501C3313, 501C33-13, 6108SS25207, 6108-SS-2520-7, 6108SS2520, 6108-SS-2520, 70133006541, 70-1330065-41, 10119091123, 10119091-123, 6108SS25207, 6108-SS-2520-7, 6108SS2520, 6108-SS-2520, 5305-01-291-0138, 01-291-0138, 5305012910138, 012910138
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 21, 1988 | 01-291-0138 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
CONE
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-291-0138
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 501C33-13 | 94033 | CARDWELL CONDENSER CORPLAPOINTE-ADMIRAL DIV |
| 6108-SS-2520-7 | 1YGB8 | CAREY MANUFACTURING COMPANY, INC.DBA AMATOM ELECTRONIC HARDWARE |
| 6108-SS-2520 | 1YGB8 | CAREY MANUFACTURING COMPANY, INC.DBA AMATOM ELECTRONIC HARDWARE |
| 70-1330065-41 | 11293 | GTE GOVERNMENT SYSTEMS CORPSTRATEGIC SYSTEMS DIV |
| 10119091-123 | 94580 | HONEYWELL INTERNATIONAL INC.DBA HONEYWELL |
| 6108-SS-2520-7 | 06540 | NEW HAVEN MFG CORPAMATOM ELECTRONIC HARDWARE DIV |
| 6108-SS-2520 | 06540 | NEW HAVEN MFG CORPAMATOM ELECTRONIC HARDWARE DIV |
Technical Data | NSN 5305-01-291-0138
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.313 INCHES NOMINAL |
| FASTENER LENGTH | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD HEIGHT | 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| POINT STYLE | CONE |
| POINT LENGTH | 0.188 INCHES NOMINAL |
| POINT DIAMETER | 0.159 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| POINT CHAMFER ANGLE | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM |