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National Stock Number:
5305-01-393-4200
Federal Supply Class:
5305
National Item Identification Number:
013934200
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.
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Manufacturer Information:
| 11907-4L-11-1 | 59563 | REID PRODUCTS INC. | | 11907-4L11M-1 | 59563 | REID PRODUCTS INC. | | HT4024L4-11M | 06725 | SPS TECHNOLOGIES, LLC | | HT4024L4-11M | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4024L4-11M | 0PTK6 | SPS TECHNOLOGIES INC | | HT4024L4-11M | 27624 | SPS TECHNOLOGIES LLC | | ST3M455-4L11M-1 | 17446 | HUCK INTERNATIONAL, INC | | HT4024L4-11M | 56878 | SPS TECHNOLOGIES, LLC | | ST3M455-4L11M-1 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M455-4 | 59563 | REID PRODUCTS INC. | | HT4024L4-11M | 73197 | HI-SHEAR CORPORATION | | ST3M455-4L11M-1 | 76301 | THE BOEING COMPANY | | ST3M455-4L11M-1 | 80539 | SPS TECHNOLOGIES, LLC | | HT4024L4-11M | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC4024L4-11M | 60516 | WEST COAST AEROSPACE, INC. | | ST3M455-4L11M-1 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M455-4L11M-1 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.469 INCHES NOMINAL | | FASTENER LENGTH | 1.142 INCHES MINIMUM AND | | 1.172 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | OVAL COUNTERSUNK | | HEAD DIAMETER | 0.390 INCHES MINIMUM AND | | 0.395 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 0.678 INCHES MINIMUM AND | | 0.698 INCHES MAXIMUM | | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND | | 0.2495 INCHES MAXIMUM | | FEATURES PROVIDED | DRY FILM LUBRICANT |
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