NSN 5305-00-020-3842
Part Details | MACHINE SCREW
5305-00-020-3842 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: NAS140227, NAS1402-27, 5305-00-020-3842, 00-020-3842, 5305000203842, 000203842
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | OCT 19, 1972 | 00-020-3842 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-020-3842
Part Number | Cage Code | Manufacturer |
---|---|---|
NAS1402-27 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-00-020-3842
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 | 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM |
FASTENER LENGTH | 2.011 INCHES MINIMUM AND 2.041 INCHES MAXIMUM |
SCREW MATERIAL | 0$DST0028$DST6150$DST8735$DST8740 |
SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BMIL-S-5626$CMIL-S-5000$DMIL-S-8503$EMIL-S-6098$FMIL-S-6049 3RD MATERIAL RESPONSE |
SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | 3 UNDERCUT HEXAGON |
HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
SPECIFICATION/STANDARD DATA | 80205-NAS1402 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |