NSN 5305-00-491-1377

Part Details | SHOULDER SCREW

5305-00-491-1377 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: 705697200, 7056972-00, 5305-00-491-1377, 00-491-1377, 5305004911377, 004911377

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 03, 196900-491-137722846 ( SCREW, SHOULDER )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-491-1377
Part Number Cage Code Manufacturer
7056972-0090536LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN
Technical Data | NSN 5305-00-491-1377
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.112 INCHES
THREAD QUANTITY PER INCH40
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM
FASTENER LENGTH0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM
HEAD STYLE3 DISHED HEXAGON
HEAD DIAMETER0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM
INTERNAL DRIVE STYLE4 CROSS RECESS TYPE 1
SPECIAL FEATURESTHIRD SHOULDER 0.135 IN. MIN BY 0.141 IN. MAX DIA,0.028 IN,MIN BY 0.038 IN. MAX LG