2925-00-442-0897 SCREW Index 5310-00-442-0902 WASHER,RECESSED

National Stock Number:
5305-00-442-0901

Federal Supply Class:
5305

National Item Identification Number:
004420901

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:
10-509428839TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV
10-509459501UNISON INDUSTRIES LLC
10-509477820AMPHENOL CORP


Techincal Specification:
FASTENER LENGTH1.000 INCHES NOMINAL
HARDNESS RATING18.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.250 INCHES NOMINAL
HEAD HEIGHT0.113 INCHES NOMINAL
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.164 INCHES
SCREW MATERIALSTEEL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.438 INCHES NOMINAL


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