5305-01-102-0312 SCREW,CLOSE TOLERANCE Index 5305-01-102-0314 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-102-0313

Federal Supply Class:
5305

National Item Identification Number:
011020313

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:
11883-5-1759563REID PRODUCTS INC.
11885-5L1706710VALLEY-TODECO, INC.
11885-5L170K6Z0SATURN FASTENERS INC
11885-5L170ZC92HEARTLAND PRECISION FASTENERS INC
11885-5L171VSL7HOUSTON PRECISION FASTENERS I LP
11885-5L174WL75CAMCAR LLC DIV CAMCAR LLC
3M927-5L17007R1TWIST TITE MFG, INC
HT4068-5-1706950HOWMET GLOBAL FASTENING SYSTEMS INC
HT4068-5-1717446HUCK INTERNATIONAL, INC
HT4068-5-1756878SPS TECHNOLOGIES, LLC
3M927-5L1758998FASTENER INNOVATION TECHNOLOGY, INC.
11885-5L1758998FASTENER INNOVATION TECHNOLOGY, INC.
3M926-5-1776301THE BOEING COMPANY
3M927-5L1776301THE BOEING COMPANY
HT4069-5-17A06725SPS TECHNOLOGIES, LLC
HT4069-5-17A06950HOWMET GLOBAL FASTENING SYSTEMS INC
HT6069-5-17A17446HUCK INTERNATIONAL, INC
HT4069-5-17A27624SPS TECHNOLOGIES LLC
HT4069-5-17A56878SPS TECHNOLOGIES, LLC
HT4068-5-1758998FASTENER INNOVATION TECHNOLOGY, INC.
HT4068-5-1760516WEST COAST AEROSPACE, INC.
WC4069-5-1760516WEST COAST AEROSPACE, INC.
HT4068-5-1773197HI-SHEAR CORPORATION
HT4069-5-17A73197HI-SHEAR CORPORATION
HT4069-5-17A80539SPS TECHNOLOGIES, LLC
HT4068-5-1780539SPS TECHNOLOGIES, LLC
HT4068-5-1792215HOWMET GLOBAL FASTENING SYSTEMS INC
HT4068-5-1797928HUCK INTL INC
HT4068-5-17K5673SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
HT4069-5-17AL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.506 INCHES MINIMUM AND
0.556 INCHES MAXIMUM
FASTENER LENGTH1.578 INCHES MINIMUM AND
1.608 INCHES MAXIMUM
MATERIALSTEEL COMP XM-13 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTALUMINUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.429 INCHES MINIMUM AND
0.477 INCHES MAXIMUM
COUNTERSINK ANGLE101.0 DEGREES NOMINAL
INTERNAL DRIVE STYLEHIGH-TORQUE
GRIP LENGTH1.052 INCHES MINIMUM AND
1.072 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND
0.3120 INCHES MAXIMUM


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