5305-01-352-8141, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-352-8141

Federal Supply Class:
5305

National Item Identification Number:
013528141

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:

124380-5-16C	80539	SPS TECHNOLOGIES, LLC
GB510FH5-16P	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
PBF1476-5-16P	27624	SPS TECHNOLOGIES LLC

Techincal Specification:

COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	1.433 INCHES MINIMUM AND 1.463 INCHES MAXIMUM
GRIP DIAMETER	0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH	0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
HEAD DIAMETER	0.578 INCHES MINIMUM AND 0.634 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COBALT COMP MP-35-N OVERALL
MINIMUM TENSILE STRENGTH	260000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES GRIP32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.448 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	24

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