NSN 5305-00-437-4505

Part Details | SHOULDER SCREW

5305-00-437-4505 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.

Alternate Parts: 12705N6C14B, 12705N6C14B, 5305-00-437-4505, 00-437-4505, 5305004374505, 004374505

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 29, 196900-437-450522846 ( SCREW, SHOULDER )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

HEXAGON

Cross Reference | NSN 5305-00-437-4505
Part Number Cage Code Manufacturer
12705N6C14B56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
12705N6C14B80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-00-437-4505
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FASTENER LENGTH1.368 INCHES MINIMUM AND 1.382 INCHES MAXIMUM
HEAD STYLE6 HEXAGON COUNTERSUNK UNDERCUT
HEAD DIAMETER0.543 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.187 INCHES NOMINAL
SPECIAL FEATURESNYLON PELLET IN THD
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT