Product Details | CLOSE TOLERANCE SCREW

5305-01-054-4627 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.

Part Alternates: BACB30LK063, BACB30LK06-3, 5305-01-054-4627, 01-054-4627, 5305010544627, 010544627

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 21 JAN 1978 01-054-4627

Drawings & Photos | NSN 5305-01-054-4627


Cross Reference | NSN 5305-01-054-4627

Part Number Cage Code Manufacturer
BACB30LK06-3 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK06-3 81205 THE BOEING COMPANY DBA BOEING
BACB30LK06-3 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30LK06-3 97928 HUCK INTL INC

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Technical Data | NSN 5305-01-054-4627

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJC
NOMINAL THREAD DIAMETER 0.138 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.283 INCHES MINIMUM AND 0.333 INCHES MAXIMUM
FASTENER LENGTH 0.481 INCHES MINIMUM AND 0.511 INCHES MAXIMUM
MATERIAL IRON ALLOY 660 OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C32 PAN
HEAD DIAMETER 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
GRIP LENGTH 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
GRIP DIAMETER 0.1365 INCHES MINIMUM AND 0.1375 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES BEARING SURFACE OF HEAD 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS
SPECIFICATION/STANDARD DATA 81205-BACB30LK MANUFACTURERS STANDARD

Restrictions/Controls & Freight Information | NSN 5305-01-054-4627

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information