NSN 5305-01-091-7925

Part Details | SHOULDER SCREW

5305-01-091-7925 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: ST3M547521, ST3M547-5-21, HT308521, HT308-5-21, HT308521, HT308-5-21, 66904H521, 66904H5-21, 66904H521, 66904H5-21, 5305-01-091-7925, 01-091-7925, 5305010917925, 010917925

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 13, 198001-091-792522846 ( SCREW, SHOULDER )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-091-7925
Part Number Cage Code Manufacturer
ST3M547-5-2176301BOEING COMPANY, THEDBA BOEING
HT308-5-2173197HI-SHEAR CORPORATION
HT308-5-21L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
66904H5-2156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
66904H5-2180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-091-7925
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.492 INCHES MINIMUM AND 0.558 INCHES MAXIMUM
FASTENER LENGTH1.764 INCHES MINIMUM AND 1.810 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
COUNTERSINK ANGLE90.0 DEGREES MINIMUM AND 110.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE