National Item Identification Number
01-349-9582
013499582
5305-01-349-9582
5305013499582
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)
26512
06710
26512
27624
80539
27624
06710
80539
Reference Numbers (Part Numbers)
GB510FG REV B
GB510FG6-18
GB510FG6-18
GB510FG6-18
GB510FG6-18
PBF1475-6-18;
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNJF
0.375 INCHES
24
3A
RIGHT-HAND
0.578 INCHES NOMINAL
1.687 INCHES MINIM