4820-00-561-7760 RETAINER,SEAT,VALVE Index 5315-00-561-7769 PIN,SHOULDER,HEADED

National Stock Number:
5305-00-561-7768

Federal Supply Class:
5305

National Item Identification Number:
005617768

Description:
SCREW,MACHINE

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.


Manufacturer Information:
900100618876U S ARMY AVIATION AND MISSILE COMMAND
G205796-4464959AMERICAN TELEPHONE AND TELEGRAPH CO
G205796-4470408AT AND T CORP


Techincal Specification:
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.197 INCHES MINIMUM AND 0.208 INCHES MAXIMUM
HEAD HEIGHT0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM
HEAD STYLEBINDING
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.099 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTZINC AND CHROMATE AND ENAMEL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.250 INCHES MINIMUM
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNF


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