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National Stock Number:
5305-01-285-2753
Federal Supply Class:
5305
National Item Identification Number:
012852753
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:
| 11883-4L20 | 59563 | REID PRODUCTS INC. | | 11885-4L20 | 59563 | REID PRODUCTS INC. | | 3M27-4L20 | 06710 | VALLEY-TODECO, INC. | | 3M27-4L20 | 06725 | SPS TECHNOLOGIES, LLC | | 3M27-4L20 | 0K6Z0 | SATURN FASTENERS INC | | 3M27-4L20 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M927-4L20 | 007R1 | TWIST TITE MFG, INC | | 3M927-4L20 | 06710 | VALLEY-TODECO, INC. | | 3M927-4L20 | 0K6Z0 | SATURN FASTENERS INC | | 3M927-4L20 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M27-4L20 | 17446 | HUCK INTERNATIONAL, INC | | 3M927-4L20 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M927-4L20 | 4WL75 | CAMCAR LLC DIV CAMCAR LLC | | 3M926-4L20 | 76301 | THE BOEING COMPANY | | HT4069-4-20A | 06725 | SPS TECHNOLOGIES, LLC | | HT4069-4-20A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4069-4-20A | 0PTK6 | SPS TECHNOLOGIES INC | | HT4069-4-20A | 17446 | HUCK INTERNATIONAL, INC | | HT4069-4-20A | 27624 | SPS TECHNOLOGIES LLC | | HT4069-4-20A | 56878 | SPS TECHNOLOGIES, LLC | | HT4068-4-20A | 56878 | SPS TECHNOLOGIES, LLC | | 3M927-4L20 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4068-4-20A | 73197 | HI-SHEAR CORPORATION | | HT4069-4-20A | 73197 | HI-SHEAR CORPORATION | | 3M927-4L20 | 76301 | THE BOEING COMPANY | | HT4069-4-20A | 80539 | SPS TECHNOLOGIES, LLC | | HT4069-4-20A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-4-20A | 97928 | HUCK INTL INC | | HT4069-4-20A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | 3M927-4L20 | U6683 | LINREAD LTD DBA LINREAD NORTHBRIDGE | | HT4096-4-20A | 06725 | SPS TECHNOLOGIES, LLC | | HT4096-4-20A | 17446 | HUCK INTERNATIONAL, INC | | HT4096-4-20A | 27624 | SPS TECHNOLOGIES LLC | | WC4069-4-20 | 60516 | WEST COAST AEROSPACE, INC. | | WC4069-4-20A | 60516 | WEST COAST AEROSPACE, INC. | | HT4069-4-20A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COLOR | WHITE TOP OF HEAD | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM | | HEAD HEIGHT | 0.015 INCHES MAXIMUM | | HEAD DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM | | HEAD STYLE | FILLISTER COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488,TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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