4930-01-444-8799 LUBRICATOR,AIRLINE Index 4820-01-444-8801 VALVE,GATE

National Stock Number:
5305-01-444-8800

Federal Supply Class:
5305

National Item Identification Number:
014448800

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:
21104851453711NAVAL SEA SYSTEMS COMMAND
752-6406820-10553711NAVAL SEA SYSTEMS COMMAND
752-6406845-5153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.139 INCHES MAXIMUM
FASTENER LENGTH1.250 INCHES NOMINAL
MATERIALPLASTIC POLYAMIDE OVERALL
STEEL UNS K03104 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
ASTM A574 MOD ASSN STD SINGLE MATERIAL RESPONSE FASTENER
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.457 INCHES MINIMUM AND
0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.469 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL


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