5120-00-575-5238 WRENCH,OPEN END BOX Index 5310-00-575-5247 WASHER,LOCK

National Stock Number:
5305-00-575-5240

Federal Supply Class:
5305

National Item Identification Number:
005755240

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:
851955418876U S ARMY AVIATION AND MISSILE COMMAND
G221225-364959AMERICAN TELEPHONE AND TELEGRAPH CO
G221225-370408AT AND T CORP
G221225-37R019HARDWARE SPECIALTY CO INC


Techincal Specification:
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD HEIGHT0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.112 INCHES
SCREW MATERIALSTEEL
WIDTH BETWEEN FLATS0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MINIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNC


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