5305-01-278-2802, SCREW,SHOULDER

2920-01-278-2801 MODIFICATION KIT,VEHICULAR EQUIP

National Stock Number:
5305-01-278-2802

Federal Supply Class:
5305

National Item Identification Number:
012782802

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:

NAS1580A3T6Y

80205

NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	0.534 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HEAD DIAMETER	0.339 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 UNS G41400 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 UNS G43400 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 UNS G8740 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
SHOULDER DIAMETER	0.218 INCHES MINIMUM AND 0.221 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPE	ROUND FIRST SHOULDER
SPECIFICATION/STANDARD DATA	80205-NAS1580 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUPPLEMENTARY FEATURES	REF DATA T.O.16W9-7-4/ECP 1292,FIG. 116,INDEX 37 REPLACEMENT SCREW
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.363 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	32

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