NSN 5305-00-020-2941
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-020-2941 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: 50483201001, 50483201-001, SMB5798421, SMB579842-1, 5305-00-020-2941, 00-020-2941, 5305000202941, 000202941
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | OCT 17, 1972 | 00-020-2941 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-020-2941
Part Number | Cage Code | Manufacturer |
---|---|---|
50483201-001 | 96238 | DNE TECHNOLOGIES, INC. |
SMB579842-1 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5305-00-020-2941
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.164 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.266 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
FASTENER LENGTH | 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM |
HEAD STYLE | 3 DISHED HEXAGON |
HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.365 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |