National Item Identification Number
01-061-7428
010617428
5305-01-061-7428
5305010617428
National Stock Number
Item Name
SCREW,CLOSE TOLERANCE
Federal Supply Class
5305
Description
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.
Commercial and Government Entity Code (Supplier Data)
17446
17446
26512
06950
ALCOA GLOBAL FASTENERS INC
DIV CITY OF INDUSTRY OPERATIONS
13001 TEMPLE AVE
LA PUENTE
CA
91746
805-991-1270
92215
80539
Reference Numbers (Part Numbers)
A146-4-6T
A146-4-6T
BM19051-4-6
BM19051-4-6
GB510AE4-6T
HT8138-4-6T
HT8138
Required Categories
THREAD CLASS
THREAD DIRECTION
THREAD LENGTH
FASTENER LENGTH
HEAD STYLE
HEAD
Required Description
3A
RIGHT-HAND
0.400 INCHES MINIMUM AND
0.467 INCHES MAXIMUM
0.785 INCHES MIN
