3120-01-387-1170 BUSHING,SLEEVE Index 5340-01-387-1172 COVER,ACCESS

National Stock Number:
5305-01-387-1171

Federal Supply Class:
5305

National Item Identification Number:
013871171

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:
132D9348P1504241BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY
Y4-2-U-LL00141ROLLER BEARING CO OF AMERICA, INC


Techincal Specification:
FASTENER LENGTH0.312 INCHES NOMINAL
HEAD DIAMETER0.171 INCHES MINIMUM AND 1.181 INCHES MAXIMUM
HEAD HEIGHT0.043 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
HEAD STYLEBINDING
INTERNAL DRIVE STYLESLOT
LOCKING FEATURE MATERIALPLASTIC POLYAMIDE NYLON
LOCKING FEATURESTRIP
NOMINAL THREAD DIAMETER0.086 INCHES
SCREW MATERIALSTEEL COMP 303
SCREW SURFACE TREATMENTPASSIVATE
SPECIAL FEATURESMAX TEMP RATING 250 DEGREE FAHRENHEIT
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.276 INCHES MINIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH56


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