5305-01-376-5286 SCREW,CAP,HEXAGON HEAD Index 5305-01-376-5288 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-376-5287

Federal Supply Class:
5305

National Item Identification Number:
013765287

Description:
SCREW,SHOULDER

Detail:
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.


Manufacturer Information:
7370010-119133MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS AEROSPACE OPNS WEST
7370010-176301THE BOEING COMPANY


Techincal Specification:
THREAD SERIES DESIGNATORUNJC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.502 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLEHEXAGON
HEAD HEIGHT0.109 INCHES MINIMUM AND
0.141 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.365 INCHES MINIMUM AND
0.377 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
SHOULDER SHAPEROUND FIRST SHOULDER
SPECIAL FEATURESAPPLY ZINC CHROMATE PER P.S. 13301 TO MACHINED SURFACE,(ALTERED ITEM MADE FROM NAS1297-06-5)


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