5305-01-537-4345, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-537-4345

Federal Supply Class:
5305

National Item Identification Number:
015374345

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Manufacturer Information:

CA21369-6-14RS

29372

HOWMET GLOBAL FASTENING SYSTEMS INC.

Techincal Specification:

COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
FASTENER LENGTH	2.120 INCHES NOMINAL
GRIP DIAMETER	0.374 INCHES NOMINAL
GRIP LENGTH	0.991 INCHES MINIMUM AND 1.130 INCHES MAXIMUM
HEAD DIAMETER	0.672 INCHES NOMINAL
HEAD STYLE	FLAT COUNTERSUNK
LOCKING FEATURE	DETENT RING LOCKING FEATURE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5731 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS5737 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH	7360 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	STUD BOLT
POINT DIAMETER	0.330 INCHES MINIMUM AND 0.335 INCHES MAXIMUM
POINT LENGTH	0.100 INCHES NOMINAL
POINT STYLE	CHAMFER DOG
POINT CHAMFER ANGLE	45.0 DEGREES NOMINAL
SINGLE SHEAR STRENGTH	9400 POUNDS PER SQUARE INCH
SPECIAL FEATURES	DRIVE STYLE IS: RADIAL-SLOT RECESS/ FAIRCHILD AEROSPACE, NOT LISTED THIS FIIG. BORED HOLE, THREADED END, 0.200 IN DIA, 0.800 IN DP; WIRE FORM HOLD OUT SPRING INSERTED; 2 LEAD THREAD.
SUPPLEMENTARY FEATURES	STUD BOLTS SHALL HAVE POLYPROPLENE HEAD PROTECTIVE RING INSTALLED FOR SHIPPING, CUSTOMER TO REMOVE RING BEFORE INSTALLING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS QQ-P-35 NATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.890 INCHES MINIMUM AND 1.029 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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