5305-01-019-5631, SCREW,EXTERNALLY RELIEVED BODY

5305-01-019-5630 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-019-5631

Federal Supply Class:
5305

National Item Identification Number:
010195631

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

1202867-24	56232	LOCKHEED MARTIN CORPORATION
166183	21877	NORTHROP GRUMMAN SYSTEMS CORPORATION
6155-SS-2528-7	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6155-SS-2528-7	1YGB8	CAREY MANUFACTURING CO, INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
HEAD DIAMETER	0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM
HEAD HEIGHT	0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
HOLE CONFIGURATION STYLE	ROUND
HOLE DIAMETER	0.063 INCHES NOMINAL
HOLE QUANTITY	1
HOLE TYPE	DRILLED
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.334 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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