5305-00-498-0396, SCREW,EXTERNALLY RELIEVED BODY

5360-00-498-0398 SPRING,HELICAL,EXTENSION

National Stock Number:
5305-00-498-0396

Federal Supply Class:
5305

National Item Identification Number:
004980396

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:

7069747-00

90536

LOCKHEED MARTIN CORP

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.540 INCHES MINIMUM AND 0.580 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
HEAD DIAMETER	0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT	0.130 INCHES MINIMUM AND 0.144 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	4912529-03 FSCM 94209 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD LENGTH	0.280 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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