5305-01-274-9700, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-274-9700

Federal Supply Class:
5305

National Item Identification Number:
012749700

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Manufacturer Information:

3176207-C-345

10001

NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

FASTENER LENGTH	2.420 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
HARDNESS RATING	37.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
HEAD HEIGHT	0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH THREADS
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIAL	STEEL FASTENER
MINIMUM TENSILE STRENGTH	170000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.625 INCHES
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 TY 2 CL 3 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	ZINC AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.309 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
THREAD QUANTITY PER INCH	18
THREAD SERIES DESIGNATOR	UNF
WIDTH ACROSS FLATS	0.500 INCHES NOMINAL

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