6140-00-811-5217 LEAD,STORAGE BATTERY Index 5305-00-811-5221 SCREW,MACHINE

National Stock Number:
5305-00-811-5220

Federal Supply Class:
5305

National Item Identification Number:
008115220

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:
918330318876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD DIAMETER0.590 INCHES MINIMUM AND 0.622 INCHES MAXIMUM
HEAD HEIGHT0.333 INCHES MINIMUM AND 0.355 INCHES MAXIMUM
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.375 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL COMP 1010
SCREW SURFACE TREATMENTCADMIUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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