5305-01-232-0430, SCREW,CLOSE TOLERANCE

5910-01-232-0431 CAPACITOR,FIXED,PAPER DIELECTRIC

National Stock Number:
5305-01-232-0430

Federal Supply Class:
5305

National Item Identification Number:
012320430

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:

GB510-CE7-10D	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
HR204-7-10D	73197	HI-SHEAR CORPORATION
PBF1202-7-10D	27624	SPS TECHNOLOGIES LLC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.950 INCHES MINIMUM AND 0.982 INCHES MAXIMUM FIRST HOLE
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
GRIP DIAMETER	0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
GRIP LENGTH	0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD DIAMETER	0.888 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP H11 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
PROPRIETARY CHARACTERISTICS	MRCS
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-8837 TY 2 CLASS 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNJF

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